Two-pole tunable bandpass filter based on YBCO plated single crystal KTO disk resonators

被引：9

作者：

Eriksson, A ^{[1
]}

Deleniv, AN

Gevorgian, S

机构：

[1] Chalmers Univ Technol, Dept Microtechnol & Nanosci, S-41296 Gothenburg, Sweden

[2] Ericsson AB, Microwave & High Speed Res Ctr, S-43184 Gothenburg, Sweden

来源：

IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY | 2004年 / 14卷 / 01期

关键词：

ferroelectric; filter; superconductor;

D O I：

10.1109/TASC.2004.825387

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

This paper addresses design and experimental characterization of a two-pole 1.5% bandpass tunable filter operating at 0.9 GHz and 77 K. The filter is based on two YBCO plated KTaO3 disc resonators (0.5-mm-thick, 10 mm in diameter) and utilizes the TM020 mode. The tunability is achieved through the nonlinear DC electric field dependence of the relative dielectric constant of KTaO3. About 5% tuning range is achieved at 500 V driving voltage. Although the insertion losses are relatively high (about -5 dB at 500 V) the shape of the passband is essentially stable. A rather good agreement between simulated and experimental performances is found.

引用

页码：1 / 6

页数：6

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