Title :
A Single-Feed Broadband Circular Polarized Rectangular Microstrip Antenna With Chip-Resistor Loading
Author :
Cao, Wenquan ; Zhang, Bangning ; Yu, Tongbin ; Li, Hongbin
Author_Institution :
Inst. of Commun. Eng., PLA Univ. of Sci. & Technol., Nanjing, China
fDate :
7/2/1905 12:00:00 AM
Abstract :
A single-feed circular polarized (CP) rectangular microstrip antenna (MPA) is proposed. Capacitive disk coupling feed is used in the design. By connecting a resistor load to another capacitive disk at the opposite position, CP radiation over a wide frequency range is realized. Experimental results show that the fabricated antenna has an impedance bandwidth (S11 return loss) of 78.7% and a 3-dB axial ratio (AR) bandwidth of 27.5%. The peak gain level is about 6.8 dB. As a result, this antenna can be used in occasions when wide AR CP performance is desired.
Keywords :
antenna feeds; antenna radiation patterns; broadband antennas; microstrip antennas; capacitive disk coupling feed; chip-resistor loading; circular polarized radiation; single-feed broadband circular polarized rectangular microstrip antenna; Bandwidth; Feeds; Microstrip; Microstrip antennas; Resistors; Broadband; capacitive coupled feed; circular polarization (CP); microstrip antenna (MPA); resistor load;
Journal_Title :
Antennas and Wireless Propagation Letters, IEEE
DOI :
10.1109/LAWP.2010.2090859
