Title :
Novel design of CPW-fed broadband circularly polarized printed antenna
Author :
Jianxin, Jia ; Chunlan, Lu ; Jie, Yang ; Zhanmeng, Li
Author_Institution :
Inst. of Commun. Eng., PLA Univ. of Sci. & Technol., Nanjing, China
Abstract :
A novel design of coplanar waveguide (CPW)-fed broadband circularly polarized printed antenna is presented. The antenna ground is slotted in rhombus shape. By adjusting the lengths and widths of two orthogonal stubs of different length embedded on the microstrip feeding-line, the proposed antenna excites two orthogonal resonant modes with equal amplitude and 900 phase difference for circular polarization (CP) radiation. An antenna was fabricated based on simulations and optimizations. The measured results show that the 3 dB axial ratio (AR) bandwidth and the bandwidth with S11<;-10dB are 11.3% (270MHz) and 14.21% (338MHz) respectively.
Keywords :
broadband antennas; coplanar waveguides; microstrip antennas; polarisation; CPW-fed broadband circularly polarized printed antenna; axial ratio bandwidth; coplanar waveguide-fed broadband circularly polarized printed antenna; microstrip feeding line; orthogonal resonant mode; phase difference; rhombus shape antenna; Antenna measurements; Bandwidth; Broadband antennas; Frequency measurement; Microstrip; Microstrip antennas; CPW-fed; broadband; circular polarization; printed antenna;
Conference_Titel :
Electronics, Communications and Control (ICECC), 2011 International Conference on
Conference_Location :
Ningbo
Print_ISBN :
978-1-4577-0320-1
DOI :
10.1109/ICECC.2011.6066564
