电子可调谐介质谐振器反射式

2014 16th International Symposium on Antenna Technology and Applied Electromagnetics (ANTEM) Pub Date : 2014-09-01 DOI:10.1109/ANTEM.2014.6887717

Abdelhady Mahmoud, A. A. Mitkees, Saber H. Zainudeen, A. Kishk

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引用次数: 4

摘要

设计了一种尺寸为230 × 230 mm2的电子可调谐孔径耦合方形介质谐振器天线(DRA)元件。DRA相位通过电容变容器控制。结果表明，在±60°范围内可以实现波束扫描。反射射线由线极化锥体喇叭天线中心馈电。在10.6 GHz时，天线提供6度的3db波束宽度，增益为25.5 dB。在1.5 dB增益变化范围内，天线带宽为9%，且辐射方向图稳定。

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Electronically tunable dielectric resonator reflectarray

An electronically tunable reflectarray of aperture coupled square dielectric resonator antenna (DRA) elements is designed with a 230 × 230 mm2 size. The DRA phase is controlled via a capacitive varactor. The results show that the beam scanning within ± 60° range can be realized. The reflectarray is center-fed by a linearly polarized pyramidal horn antenna. At 10.6 GHz, the antenna provides a 3-dB beamwidth of 6 degrees with a gain of 25.5 dB. The antenna bandwidth within 1.5 dB gain variation is found to be 9% with stable radiation patterns.

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2014 16th International Symposium on Antenna Technology and Applied Electromagnetics (ANTEM)

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