A Compact Low-Loss Tunable Filter with Mixed Electric and Magnetic Coupling

被引：0

作者：

Ge, Chuan ^{[1
]}

Zhu, Xiao-Wei ^{[1
]}

机构：

[1] Southeast Univ, Sch Informat Sci & Engn, State Key Lab Millimeter Waves, Nanjing 210096, Jiangsu, Peoples R China

来源：

2012 ASIA-PACIFIC MICROWAVE CONFERENCE (APMC 2012) | 2012年

关键词：

tunable filter; constant absolute bandwidth; mixed coupling; high quality factor; BANDPASS-FILTERS;

D O I：

暂无

中图分类号：

TN [电子技术、通信技术];

学科分类号：

0809 ;

摘要：

This paper presents the design of novel tunable bandpass filter with constant absolute bandwidth. A novel mixed electric and magnetic coupling scheme is utilized. Theoretical analysis indicates that it is able to achieve desired coupling coefficients between the proposed resonators. For demonstration, a high Q tunable filter is implemented with 105 MHz constant absolute bandwidth. Experimental results agree with theoretical and simulated predications excellently.

引用

页码：514 / 516

页数：3

共 5 条

[1] A compact open-loop filter with mixed electric and magnetic coupling
Chu, Qing-Xin
Wang, Huan
[J]. IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES, 2008, 56 (02) : 431 - 439
[2] ELECTRONICALLY TUNABLE MICROWAVE BANDPASS-FILTERS
HUNTER, IC
RHODES, JD
[J]. IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES, 1982, 30 (09) : 1354 - 1360
[3] Low-loss two-pole tunable filters with three different predefined bandwidth characteristics
Park, Sang-June
Rebeiz, Gabriel M.
[J]. IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES, 2008, 56 (05) : 1137 - 1148
[4] Varactor-Tuned Dual-Mode Bandpass Filters
Tang, Wenxing
Hong, Jia-Sheng
[J]. IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES, 2010, 58 (08) : 2213 - 2219
[5] Low-Loss Frequency-Agile Bandpass Filters With Controllable Bandwidth and Suppressed Second Harmonic
Zhang, Xiu Yin
Xue, Quan
Chan, Chi Hou
Hu, Bin-Jie
[J]. IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES, 2010, 58 (06) : 1557 - 1564

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