Title :
A novel broadband low-profile array antenna with accurate beam-width for wireless communication base station
Author :
Peng, Wenfeng ; He, Shanhong
Author_Institution :
Sch. of Electron. Eng. & Opt., Nanjing Univ. of Sci. & Technol., Nanjing, China
Abstract :
A novel linear array antenna formed by the anti-phase feeding L-probe tapered patches with parasitical radiating patches and reflector ground with cutting slots is proposed and investigated experimentally. The measured impedance bandwidth determined by VSWR<;1.5 is 23.7% and it can be improved further, and the more accurate Half-Power Beam Width (HPBW) of 90+2° (the criterion is 90+8°) in azimuth plane is achieved by designing the shape of the radiation element and its reflector ground. The antenna has a front-to-back ratio of radiation pattern of 25 dB and the gain of the array antenna is enhanced by the anti-phase feeding technique. The array characters not only satisfy the wireless communication criterions but also some of them exceed the criterions, it is highly suitable for the base station applications for wireless communication systems.
Keywords :
antenna arrays; broadband antennas; radiocommunication; accurate beam-width; anti-phase feeding L-probe tapered patches; antiphase feeding; base station application; broadband low-profile array antenna; cutting slots; front-to-back ratio; half-power beam width; impedance bandwidth; linear array antenna; parasitical radiating patches; radiation element; radiation pattern; reflector ground; wireless communication base station; wireless communication criterions; wireless communication system; Antenna feeds; Antenna radiation patterns; Arrays; Broadband antennas; Impedance; Linear antenna arrays; Array Antenna; Beam width; Broadband; Low profile;
Conference_Titel :
Microwave, Antenna, Propagation, and EMC Technologies for Wireless Communications (MAPE), 2011 IEEE 4th International Symposium on
Conference_Location :
Beijing
Print_ISBN :
978-1-4244-8265-8
DOI :
10.1109/MAPE.2011.6156166
