发明名称 |
Devices and Methods for Phase Shifting a Radio Frequency (RF) Signal for a Base Station Antenna |
摘要 |
Methods and devices for phase shifting an RF signal for a base station antenna are provided. The device includes a transmission line that has a stationary ground plane coupled to the top of a substrate and a signal line on the bottom of the substrate. The signal line has an input port and an output port. The input port receives the RF signal with a certain phase and travels across the bottom of the substrate to the output port. The RF signal has a different phase at the output port because defected ground structures etched on the stationary ground plane shift the phase of the RF signal. In addition, the device includes a movable ground plane that may cover a portion of the defected ground structures, the substrate, and the stationary ground plane such that the moveable ground plane further adjusts the phase of the RF signal.
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申请公布号 |
US2011183624(A1) |
申请公布日期 |
2011.07.28 |
申请号 |
US20100723161 |
申请日期 |
2010.03.12 |
申请人 |
THIAGARAJAR COLLEGE OF ENGINEERING |
发明人 |
V. ABHAIKUMAR;S. RAJU;S. DEEPAK RAM PRASATH;R. SENTHILKUMAR;P. VASIKARAN |
分类号 |
H04B1/00 |
主分类号 |
H04B1/00 |
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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