Design and implementation of a lumped-element multipole HTS filter at 15 MHz

We have designed a three-pole bandpass filter operating at 15 MHz. The para meters of the filter include high Q, narrow band, low insertion loss and a return loss of 20 dB. The filter was fabricated from double-sided YBCO thin film on a two inch LAO substrate. Our design utilizes individual HTS lumpe d elements (interdigital capacitors and meander line inductors) to of the p oles of the filter. The design and modeling of the filter are discussed in detail. Experimental results from the S-parameter measurements will be pres ented, Good agreement has been found between the simulation results and exp erimental data.