Active broad X-band circular patch antenna

作者：Andrenko Andrey S^*; Ivanchenko Igor V; Ivanchenko Denis I; Karelin Sergey Y; Korolev Alexey M; Laz'ko Evgeniy P; Popenko Nina A

来源：IEEE Antennas and Wireless Propagation Letters, 2006, 5: 529-533.

DOI：10.1109/LAWP.2005.860200

• circular patch antenna
• conical radiation pattern
• HEMT amplifier
• indoor communications
• near-field distribution

This letter presents the results of experimental study of onmidirectional circular patch antenna operating in the TM010 mode. Antenna geometrical parameters have been selected on the basis of theoretical calculations. It has been shown that the antenna of this kind with VSWR <= 2 and bandwidth of 18% has a conical radiation pattern with maximum oriented 36 degrees to the zenith. The antenna has a side radiation level of - 15 dB and a cross-component level of less than -25 dB. The experimental results are in good agreement with the theoretical calculations. Employment of the one-stage HEMT amplifier makes it possible to obtain the total gain of an active antenna of no less than 10 dB. This antenna can be successfully used for mobile systems, wireless indoor communications, as well as for array applications.

• 出版日期2006