Tunable Coplanar Wave Guide Band Stop Filters

被引：1
|
作者：
Aldeeb, Hassan [1 ]
Kalkur, T. S. [1 ]
机构：
[1] Univ Colorado, Dept Elect & Comp Engn, Microelect Res Labs, Colorado Springs, CO 80933 USA
来源：
INTEGRATED FERROELECTRICS | 2013年 / 141卷 / 01期
关键词：
Tunable Band Filter; BST; varactor; tunability;
D O I：
10.1080/10584587.2013.780138
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：
A tunable band stop filter is designed in the frequency range of 0.5GHz to 1GHz and its performance is simulated with Agilent ADS. The filter is fabricated on FR-4 substrates. The BST parallel plate ferroelectric varactors are fabricated on sapphire substrates by MOD technique with Platinum Electrodes and ion-milling. The ferroelectric capacitors show a tunability over 50% within an applied DC bias of 5 V. The filter response was measured using Agilent Vector network analyzer. For the third order BST varactor tuned band stop filters, the notch frequency can be tuned from 480MHz to 620MHz by the application of 5 V tuning voltage with a maximum band attenuation of 20 dB.
引用
收藏
页码：105 / 111
页数：7
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