Sat, 26 Jul 2008 06:12:05 BST CiteULike: dcastro's Lancaster http://www.citeulike.org/user/dcastro/author/Lancaster CiteULike.org en-gb Copyright © 2004-2008 citeulike.org http://www.citeulike.org/user/dcastro/article/1915048 <i>Microwave Symposium Digest, 2003 IEEE MTT-S International, Vol. 3 (2003), pp. 1889-1892 vol.3.</i><br /><br />Novel resonators composed of double-spiral inductors and interdigital capacitors are developed, which not only are compact in size but also have no harmonics up to three times of the fundamental frequency. The center frequency is insensitive to the thickness of the substrate. A miniature seven-pole narrow-band HTS bandpass microstrip filter has been designed, fabricated and tested for an astronomy observation application, which requires a center frequency at 610 MHz and 0.82% fractional bandwidth. The computed and measured results are found in excellent agreement. Superconducting microstrip filters using compact resonators with double-spiral inductors and interdigital capacitors Jiafeng Zhou MJ Lancaster F Huang Microwave Symposium Digest, 2003 IEEE MTT-S International, Vol. 3 (2003), pp. 1889-1892 vol.3. 2007-11-14T17:46:09-00:00 2003 Microwave Symposium Digest, 2003 IEEE MTT-S International 3 1889 1892 vol.3 capacitor filters inductor interdigital microstrip