发明名称 |
Phase shifter with photonic band gap structure using ferroelectric thin film |
摘要 |
Provided are a phase shifter with a photonic band gap (PBG) structure using a ferroelectric thin film. The phase shifter includes a microstrip transmission line acting as a microwave input/output line and a plurality of tunable capacitors arranged in the microstrip transmission line at regular intervals. Electrodes disposed on a substrate apply DC voltages to the plurality of tunable capacitors. Radio frequency (RF) chokes and quarter wavelength radial-stubs are connected between the electrodes and the microstrip transmission line in order to prevent high frequency signals from flowing into a DC bias terminal. A plurality of PBGS are periodically arrayed on a ground plane of the substrate.
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申请公布号 |
US7692516(B2) |
申请公布日期 |
2010.04.06 |
申请号 |
US20050722299 |
申请日期 |
2005.12.20 |
申请人 |
ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE |
发明人 |
KIM YOUNG-TAE;RYU HAN-CHEOL;KWAK MIN-HWAN;MOON SEUNG-EON;LEE SU-JAE;KANG KWANG-YONG |
分类号 |
H01P1/18;H01P3/08 |
主分类号 |
H01P1/18 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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