Title :
Broadband double-tuned element with low profile for base station antennas
Author :
Deng, J.-Y. ; Yin, Y.-Z. ; Song, Kaijun ; Gao, Huijun ; Liu, Q.-Z.
Author_Institution :
Nat. Key Lab. of Antennas & Microwave Technol., Xidian Univ., Xi´an, China
Abstract :
A broadband element with low profile (0.1?? at 1710 MHz) for base station antennas is presented. A special loop-feed technique, which achieves a double-tuned response like a bandpass filter, is used to broaden the operation band of the antenna. The proposed antenna yields 29% bandwidth of 1710-2200 MHz with return loss less than 17 dB (VSWR<1.32). Simulated and measured results are given, showing the element is suitable in base station antennas for cellular networks.
Keywords :
UHF antennas; band-pass filters; broadband antennas; cellular radio; bandpass filter; base station antennas; broadband double-tuned element; cellular networks; frequency 1710 MHz to 2200 MHz; special loop-feed technique; wideband antennas;
Journal_Title :
Electronics Letters
DOI :
10.1049/el.2010.3393
