Sat, 19 Jul 2008 03:01:08 BST CiteULike: dcastro's mixer http://www.citeulike.org/user/dcastro/tag/mixer CiteULike.org en-gb Copyright © 2004-2008 citeulike.org http://www.citeulike.org/user/dcastro/article/2890779 <i>Electrotechnical Conference, 2006. MELECON 2006. IEEE Mediterranean (2006), pp. 276-279.</i><br /><br />The use of composite right/left-handed transmission lines (CRLH-TLs) in distributed mixers, instead of the usual right-handed transmission lines (RH-TLs), is explored. A simplified analysis, based on lossless transmission lines and a simple model for the active devices, shows that innovative distributed mixer designs could be achieved. In particular, it is shown that it is possible to extract the IF output from different output ports, depending on the RF frequency. Active composite right/left-handed transmission line-based mixers J Mata-Contreras TM Martin-Guerrero C Camacho-Penalosa doi:10.1109/MELCON.2006.1653092 Electrotechnical Conference, 2006. MELECON 2006. IEEE Mediterranean (2006), pp. 276-279. 2008-06-13T08:39:41-00:00 2006 Electrotechnical Conference, 2006. MELECON 2006. IEEE Mediterranean 276 279 active crlh metamaterial mixer tl http://www.citeulike.org/user/dcastro/article/2801966 <i>Microwave Symposium Digest, 1999 IEEE MTT-S International, Vol. 2 (1999), pp. 655-658 vol.2.</i><br /><br />A novel retrodirective array with intrinsic gain has been developed and demonstrated successfully for the first time. Each heterodyne scattering element employs a balanced FET mixer, which provides effective isolation between RF and IF signals with identical frequencies to realize phase conjugation. A 4-element array has been fabricated, which demonstrated excellent retrodirectivity A retrodirective array using balanced quasi-optical FET mixers with conversion gain RY Miyamoto Yongxi Qian T Itoh doi:10.1109/MWSYM.1999.779846 Microwave Symposium Digest, 1999 IEEE MTT-S International, Vol. 2 (1999), pp. 655-658 vol.2. 2008-05-15T15:11:14-00:00 1999 Microwave Symposium Digest, 1999 IEEE MTT-S International 2 655 658 vol.2 array fet gain mixer http://www.citeulike.org/user/dcastro/article/2801466 <i>Microwave Symposium Digest, 2002 IEEE MTT-S International, Vol. 2 (2002), pp. 1277-1280.</i><br /><br />A compact quadrature modulator/demodulator integrated with a 40 GHz patch antenna for millimeter wave wireless applications is proposed. Anti-parallel diode sub-harmonic mixers are constructed for broad-band direct quadrature conversion. Overall phase and amplitude imbalance between the mixer I and Q output channels are less than 1.2° and 1 dB respectively. An average conversion loss of mixers of -14.6 dB is achieved in the frequency range from 39.75 GHz to 40.25 GHz. A communication link is built based on a pair of the proposed front-ends. Data transmission at up to 1 Gb/s data rate for QPSK modulation is successfully demonstrated Millimeter wave direct quadrature converter integrated with antenna for broad-band wireless communications Ji-Yong Park Seong-Sik Jeon Yuanxun Wang T Itoh doi:10.1109/MWSYM.2002.1011896 Microwave Symposium Digest, 2002 IEEE MTT-S International, Vol. 2 (2002), pp. 1277-1280. 2008-05-15T12:14:54-00:00 2002 Microwave Symposium Digest, 2002 IEEE MTT-S International 2 1277 1280 antenna broadband converter mixer wireless http://www.citeulike.org/user/dcastro/article/2801456 <i>Microwave Symposium Digest, 1998 IEEE MTT-S International, Vol. 2 (1998), pp. 1135-1138 vol.2.</i><br /><br />The global time-domain nonlinear analysis of microwave FET oscillators and self-oscillating mixers using the extended FDTD technique is presented. Employing the concept of equivalent current/voltage sources, the device-wave interaction is characterized and incorporated into the FDTD time-stepping algorithm. Consequently, investigation of highly nonlinear phenomena, such as injection locking and intermodulation, can be accomplished by utilizing a large-signal device circuit model. Theoretical results are validated by experiments Global time-domain full-wave analysis of microwave FET oscillators and self-oscillating mixers Min Chen WR Deal B Houshmand T Itoh doi:10.1109/MWSYM.1998.705194 Microwave Symposium Digest, 1998 IEEE MTT-S International, Vol. 2 (1998), pp. 1135-1138 vol.2. 2008-05-15T12:12:47-00:00 1998 Microwave Symposium Digest, 1998 IEEE MTT-S International 2 1135 1138 vol.2 fet microwave mixer oscillator http://www.citeulike.org/user/dcastro/article/2801442 <i>Microwave Symposium Digest, 1999 IEEE MTT-S International, Vol. 4 (1999), pp. 1409-1411 vol.4.</i><br /><br />A C-band direct conversion receiver front-end based on a resistive FET mixer has been developed. Resistive FET mixers, as opposed to other configurations, require only gate bias and no drain bias. Thus the baseband signal can be easily filtered from the drain terminal. The resistive FET mixer is integrated with rectangular microstrip patch antenna, yielding a compact receiver front-end. A prototype was constructed and demonstrated satisfactory demodulation of a BPSK modulated RF signal C-band direct conversion receiver front-end using a resistive FET mixer S Lin Yongxi Qian T Itoh doi:10.1109/MWSYM.1999.780213 Microwave Symposium Digest, 1999 IEEE MTT-S International, Vol. 4 (1999), pp. 1409-1411 vol.4. 2008-05-15T12:09:03-00:00 1999 Microwave Symposium Digest, 1999 IEEE MTT-S International 4 1409 1411 vol.4 c-band conversion direct fet front-end mixer receiver resistive http://www.citeulike.org/user/dcastro/article/2782070 <i>Microwave Symposium Digest, 1999 IEEE MTT-S International, Vol. 3 (1999), pp. 919-922 vol.3.</i><br /><br />A novel lowpass filter with a uniplanar, compact photonic band-gap structure etched in the ground plane has been proposed and demonstrated. This new filter has a deep attenuation and spurious-free response. A drain mixer using this novel filter suppresses the LO leakage by over 10 dB compared to a reference mixer with a conventional filter A novel uniplanar compact PBG structure for filter and mixer applications Fei-Ran Yang Yongxi Qian T Itoh doi:10.1109/MWSYM.1999.779536 Microwave Symposium Digest, 1999 IEEE MTT-S International, Vol. 3 (1999), pp. 919-922 vol.3. 2008-05-10T00:03:34-00:00 1999 Microwave Symposium Digest, 1999 IEEE MTT-S International 3 919 922 vol.3 compact mixer pbg structure http://www.citeulike.org/user/dcastro/article/2776229 <i>Microwave Theory and Techniques, IEEE Transactions on, Vol. 49, No. 3. (2001), pp. 442-450.</i><br /><br />A balanced integrated-antenna self-oscillating mixer at 60 GHz is presented in this paper. The modal radiation characteristics of a dual-feed planar quasi-Yagi antenna are used to achieve RF-local oscillator (RF-LO) isolation between closely spaced frequencies. The balanced mixer is symmetric, inherently broad band, and does not need an RF balun. Pseudomorphic high electron-mobility transistors are used in a 30-GHz push-pull circuit to generate the second harmonic and a 30-GHz dielectric resonator was used to stabilize the fundamental oscillation frequency. This allows the possibility of building a balanced low-cost self-contained antenna integrated receiver with low LO leakage for short-range narrow-band communication. Phase locking can be done with half of the RF frequency. The circuit exhibits a conversion loss less than 15 dB from 60 to 61.5 GHz, radiation leakage of -26 dBm at 60 GHz, and IF phase noise of -95 dBc/Hz at 100-kHz offset A subharmonic self-oscillating mixer with integrated antenna for 60-GHz wireless applications M Sironen Y Qian T Itoh doi:10.1109/22.910547 Microwave Theory and Techniques, IEEE Transactions on, Vol. 49, No. 3. (2001), pp. 442-450. 2008-05-09T16:10:42-00:00 2001 Microwave Theory and Techniques, IEEE Transactions on 49 3 442 450 active antenna integrated mixer oscillator http://www.citeulike.org/user/dcastro/article/2774767 <i>Telecommunications in Modern Satellite, Cable and Broadcasting Services, 1999. 4th International Conference on, Vol. 1 (1999), pp. 194-197 vol.1.</i><br /><br />Within research toward a new generation of in-door communication systems, utilization of frequencies in the higher microwave and lower MM-wave bands may play an important role in future. One of the barriers to fast market introduction is convenient inherently low cost RF front ends to be realized in planar technology, moreover with integrated antennas. In this paper, a solution for an up converter with an integrated antenna at 5 GHz (non-licensed/HIPERLAN band) to 24 GHz (ISM band) is presented. The results may also trace work on the future 100 GHz systems. A solution with a sector antenna is successfully implemented and described in more detail. The measured results have verified the proposed concept Active antenna integrated with up converter for 5 to 24 GHz band A Nesic I Radnovic V Brankovic D Nesic doi:10.1109/TELSKS.1999.804725 Telecommunications in Modern Satellite, Cable and Broadcasting Services, 1999. 4th International Conference on, Vol. 1 (1999), pp. 194-197 vol.1. 2008-05-09T08:35:58-00:00 1999 Telecommunications in Modern Satellite, Cable and Broadcasting Services, 1999. 4th International Conference on 1 194 197 vol.1 active antenna integrated mixer http://www.citeulike.org/user/dcastro/article/2774759 <i>Microwave Symposium Digest, 1994., IEEE MTT-S International (1994), pp. 425-428 vol.1.</i><br /><br />A new planar transponder integrating a self-oscillating mixer (SOM) and active antennas is presented. The receiving active antenna combines a FET SOM with a patch antenna and the transmitting antenna is combined with the IF amplifier. The transponder was successfully operated up to 2 m. The design concept and the experimental result are discussed Transponder using self-oscillating mixer and active antenna K Cha S Kawasaki T Itoh doi:10.1109/MWSYM.1994.335423 Microwave Symposium Digest, 1994., IEEE MTT-S International (1994), pp. 425-428 vol.1. 2008-05-09T08:35:19-00:00 1994 Microwave Symposium Digest, 1994., IEEE MTT-S International 425 428 vol.1 active antenna mixer oscillator http://www.citeulike.org/user/dcastro/article/2774730 <i>High Frequency Postgraduate Student Colloquium, 2001. 6th IEEE (2001), pp. 125-129.</i><br /><br />A patch antenna integrated with two Low Noise Amplifiers (LNA) is implemented to act as an Image Reject Mixer (IRM). The low noise active antenna system transforms a received radio frequency signal into two signals, which are out-of phase to each other. The image signals can be cancelled by the IRM. The antenna, LNA's, mixers and local oscillator (LO) are integrated into a single Active Integrated Antenna (AIA) module. An external IF 90° hybrid coupler is required in the IRM. The advantages of the LNA active antenna mixer system are low noise, image signal rejection, low cost and simple circuitry of front-end, and improved receiver sensitivity Low noise integrated active antenna as image reject mixer (IRM) W Ismail P Gardner doi:10.1109/HFPSC.2001.962179 High Frequency Postgraduate Student Colloquium, 2001. 6th IEEE (2001), pp. 125-129. 2008-05-09T08:27:04-00:00 2001 High Frequency Postgraduate Student Colloquium, 2001. 6th IEEE 125 129 active antenna integrated low mixer noise http://www.citeulike.org/user/dcastro/article/2774718 <i>Radio Frequency Integrated Circuits (RFIC) Symposium, 2003 IEEE (2003), pp. 435-438.</i><br /><br />An integrated downconverter for active antenna arrays is presented. From 5.125 GHz to 5.875 GHz the downconverter shows more than 20 dB conversion gain and a noise figure of less than 3.8 dB with a minimum of 3.3 dB. Input 1 dB compression point is -18 dBm. Image rejection better than 35 dB is achieved using an integrated lumped-element bandpass filter. A switchable symmetric input amplifier is proposed to calibrate amplitude and phase errors without degrading the noise figure. 5-6 GHz monolithically integrated calibratable low-noise downconverter for smart antenna arrays T Brauner R Vogt W Bachtold Radio Frequency Integrated Circuits (RFIC) Symposium, 2003 IEEE (2003), pp. 435-438. 2008-05-09T08:23:37-00:00 2003 Radio Frequency Integrated Circuits (RFIC) Symposium, 2003 IEEE 435 438 active antenna array low mixer noise smart http://www.citeulike.org/user/dcastro/article/2774605 <i>Microwave Symposium Digest, 1996., IEEE MTT-S International, Vol. 1 (1996), pp. 333-336 vol.1.</i><br /><br />A cavity backed, Gunn diode driven, self-mixing active inverted stripline circular patch antenna has been developed. The active antenna provides good radiation patterns with cross-polarization levels 18 dB below copolarization at boresight. The self-mixing performance shows that the circuit has a 2 dB conversion gain for IFs up to 450 MHz and a double sideband noise figure of 15 dB at 200 MHz. The antenna is suitable for use as a transceiver for short communications links or as a microwave identification transceiver A self-mixing active antenna for communication and vehicle identification applications CM Montiel L Fan K Chang doi:10.1109/MWSYM.1996.508524 Microwave Symposium Digest, 1996., IEEE MTT-S International, Vol. 1 (1996), pp. 333-336 vol.1. 2008-05-09T07:25:52-00:00 1996 Microwave Symposium Digest, 1996., IEEE MTT-S International 1 333 336 vol.1 active antenna mixer http://www.citeulike.org/user/dcastro/article/2774626 <i>Microwaves, Antennas and Propagation, IEE Proceedings -, Vol. 147, No. 6. (2000), pp. 479-482.</i><br /><br />An active microstrip antenna with self-mixing oscillator is introduced with double-ring geometry. It is simple to implement and presents a dual-frequency response in the operating range of C-band (3.7-4.2 GHz). The circuit with common-drain FET is used as an oscillator as well as a mixer. This active microstrip antenna can be applied in ROTV of satellite communication as the down converter Double-ring active microstrip antenna and self-mixing oscillator in C-band JC Liu PC Lu DC Chang CC Chang doi:10.1049/ip-map:20000794 Microwaves, Antennas and Propagation, IEE Proceedings -, Vol. 147, No. 6. (2000), pp. 479-482. 2008-05-09T07:33:51-00:00 2000 Microwaves, Antennas and Propagation, IEE Proceedings - 147 6 479 482 active antenna c-band microstrip mixer oscillator http://www.citeulike.org/user/dcastro/article/2774613 <i>Telecommunications in Modern Satellite, Cable and Broadcasting Services, 1999. 4th International Conference on, Vol. 1 (1999), pp. 198-201 vol.1.</i><br /><br />Within the research towards a new generation of in-door communication systems, the utilization of frequencies in the higher microwave and lower MM-wave bands may play an important role in future. Moreover, it is assumed that future systems can also simultaneously exploit the advantages of lower and higher frequency bands. In order to prove the system concept, a dual-frequency demonstrator working at 24 GHz (ISM band) and 5 GHz (non-licensed band) is under development. Full integration of a high gain antenna with a 24 GHz front-end is achieved in very low-cost way. The solutions are successfully implemented and described in more detail. Measured results have proved the proposed concept Active antenna integrated with down converter for 24 to 5 GHz bands A Nesic I Radnovic V Brankovic D Nesic doi:10.1109/TELSKS.1999.804726 Telecommunications in Modern Satellite, Cable and Broadcasting Services, 1999. 4th International Conference on, Vol. 1 (1999), pp. 198-201 vol.1. 2008-05-09T07:26:20-00:00 1999 Telecommunications in Modern Satellite, Cable and Broadcasting Services, 1999. 4th International Conference on 1 198 201 vol.1 active antenna integrated mixer http://www.citeulike.org/user/dcastro/article/2774490 <i>Microwave and Guided Wave Letters, IEEE [see also IEEE Microwave and Wireless Components Letters], Vol. 9, No. 3. (1999), pp. 117-119.</i><br /><br />Current trends in commercial communication system developments have called for small-size and low-cost radio frequency (RF)/microwave circuits. One of the solutions is to design a circuit element such that it possesses multiple functionality. In other words, different parts of a circuit are integrated into a single element, and consequently fewer elements are required. In this work, a C-band self-oscillating mixer (SOM) integrated with an active antenna is presented. A dual-gate field-effect transistor (FET) is employed to facilitate the integration. The resultant unit was tested and experimental results are shown to demonstrate the feasibility of the design Integration of a self-oscillating mixer and an active antenna Jiazong Zhang Yunyi Wang Zhizhang Chen doi:10.1109/75.761679 Microwave and Guided Wave Letters, IEEE [see also IEEE Microwave and Wireless Components Letters], Vol. 9, No. 3. (1999), pp. 117-119. 2008-05-09T06:37:33-00:00 1999 Microwave and Guided Wave Letters, IEEE [see also IEEE Microwave and Wireless Components Letters] 9 3 117 119 active antenna mixer oscillator http://www.citeulike.org/user/dcastro/article/2762254 <i>Microwave Symposium Digest, 1991., IEEE MTT-S International (1991), pp. 589-592 vol.2.</i><br /><br />A novel microwave optoelectronic mixer was fabricated on semi-insulating GaAs by monolithically integrating Schottky diode photodetectors into a microstrip ring resonator. Resistive mixing occurs when the conductance of the detector is modulated, and parametric amplification occurs when the capacitive reactance of the detector is modulated. The mixer shows very good potential for application in wideband fiber optic systems Resistive mixing and parametric up-conversion of microwave optoelectronic signals in a microstrip ring resonator GK Gopalakrishnan BW Fairchild CL Yeh CS Park K Chang MH Weichold HF Taylor doi:10.1109/MWSYM.1991.147071 Microwave Symposium Digest, 1991., IEEE MTT-S International (1991), pp. 589-592 vol.2. 2008-05-06T18:35:56-00:00 1991 Microwave Symposium Digest, 1991., IEEE MTT-S International 589 592 vol.2 mixer resonator ring http://www.citeulike.org/user/dcastro/article/2762241 <i>Microwave and Guided Wave Letters, IEEE [see also IEEE Microwave and Wireless Components Letters], Vol. 4, No. 9. (1994), pp. 301-302.</i><br /><br />We report the design, measured and simulated performance of a novel W-band monolithic, singly balanced resistive FET mixer utilizing 0.1-μm pseudomorphic AlGaAs/InGaAs on GaAs HEMT technology. At an LO drive of +8 dBm, this mixer has exhibited a minimum measured conversion loss of 12.8 dB, nearly a 10 dB improvement over previously reported data in this frequency range. Furthermore, the mixer figure of merit, defined as P_1-dB,in-P_LO, is at least +2 dBm, which is nominally 6 dBm better than that of comparable diode mixers at W-band. These results indicate the excellent potential of this mixer for integration with other circuit components in fully monolithic subsystems A W-band monolithic, singly balanced resistive mixer with low conversion loss KW Chang EW Lin H Wang KL Tan WH Ku doi:10.1109/75.311514 Microwave and Guided Wave Letters, IEEE [see also IEEE Microwave and Wireless Components Letters], Vol. 4, No. 9. (1994), pp. 301-302. 2008-05-06T18:33:22-00:00 1994 Microwave and Guided Wave Letters, IEEE [see also IEEE Microwave and Wireless Components Letters] 4 9 301 302 balanced mixer http://www.citeulike.org/user/dcastro/article/2762240 <i>Microwave Theory and Techniques, IEEE Transactions on, Vol. 39, No. 12. (1991), pp. 1980-1986.</i><br /><br />The design and fabrication of four broadband monolithic passive baluns including CPW Marchand, multilayer MS Marchand, planar-transformer and broadside-coupled line baluns are presented. Operational frequencies range from 1.5 GHz to 24 GHz. Maximum relative bandwidths in excess of 3:1 are achieved. Simulated performances using full wave electromagnetic analysis are shown to agree with the measured results. Two accurate equivalent circuit models constructed from either electromagnetic simulated or measured S-parameters are developed for the MS Marchand and transformer baluns making the optimization of baluns and circuit design using the baluns much more efficient. The design of monolithic double-balanced diode mixer using two planar-transformer baluns is also presented. Without DC bias, the mixer shows a minimum conversion loss of 6 dB with the RF at 5 GHz and a LO drive of 15 dBm at 4 GHz. The measured input IP₃ of this mixer is better than 15 dBm over the 4 to 5.75 GHz frequency band Broadband monolithic passive baluns and monolithic double-balanced mixer Chen KW Chang SB Bui H Wang GS Dow LCT Liu TS Lin WS Titus doi:10.1109/22.106536 Microwave Theory and Techniques, IEEE Transactions on, Vol. 39, No. 12. (1991), pp. 1980-1986. 2008-05-06T18:33:19-00:00 1991 Microwave Theory and Techniques, IEEE Transactions on 39 12 1980 1986 balanced balun broadband mixer passive http://www.citeulike.org/user/dcastro/article/2762224 <i>Antennas and Propagation Society International Symposium, 2000. IEEE, Vol. 3 (2000), pp. 1268-1271 vol.3.</i><br /><br />A four-element array single card receiver for indoor wireless applications at C-band is presented. A broadband quasi-Yagi antenna is adopted as the antenna array element due to its broad beamwidth and low mutual coupling characteristics. The integrated receiver circuit uses a multilayer architecture, where RF and baseband circuits are placed above and below the antenna substrate, resulting in a very compact design. Using digital signal processing, the array element patterns are calculated from the four-channel amplitude and phase information of the baseband outputs. An initial test of the integrated receiver shows a scanning range of 70°, without the use of any adaptive algorithm Active quasi-Yagi antenna direct conversion receiver array with digital beamforming SS Jeon Y Wang Y Qian B Houshmand T Itoh doi:10.1109/APS.2000.874434 Antennas and Propagation Society International Symposium, 2000. IEEE, Vol. 3 (2000), pp. 1268-1271 vol.3. 2008-05-06T18:30:54-00:00 2000 Antennas and Propagation Society International Symposium, 2000. IEEE 3 1268 1271 vol.3 active antenna beamformer digital mixer receiver http://www.citeulike.org/user/dcastro/article/2762221 <i>Electrical Performance of Electronic Packaging, 1998. IEEE 7th topical Meeting on (1998), pp. 79-82.</i><br /><br />A novel interconnect and packaging concept for high-density, broadband mixed signal silicon MMICs is presented. Compared to conventional microstrip or stripline-based structures, the proposed silicon/metal/polyimide (SIMPOL) interconnect is very promising for extremely high isolation (>100 dB) between adjacent channels from DC up to 50 GHz, as indicated by simulations using a pre-verified full-wave FDTD code A novel high isolation interconnect for broadband mixed signal silicon MMICs Y Qian MF Chang T Itoh doi:10.1109/EPEP.1998.733839 Electrical Performance of Electronic Packaging, 1998. IEEE 7th topical Meeting on (1998), pp. 79-82. 2008-05-06T18:30:49-00:00 1998 Electrical Performance of Electronic Packaging, 1998. IEEE 7th topical Meeting on 79 82 broadband mixer