Title :
Compact circularly-polarized antenna with spiral slots for CNSS dual-band applications
Author :
Pan, Ze-Kun ; Chu, Qing-Xin ; Lin, Wei
Author_Institution :
Sch. of Electron. & Inf. Eng., South China Univ. of Technol., Guangzhou, China
Abstract :
A novel compact single-feed circularly-polarized (CP) antenna is proposed for CNSS dual-band applications. The antenna comprises a small circular patch with embedded four spiral square slots around the boundary and a narrow slot in the center. It is observed that the lower (1615MHz) and upper (2498MHz) resonance frequencies are controlled by the circular patch and the spiral slots. The CP operation is mainly achieved by the narrow slot. The antenna has a low profile and a small size with a radius of 19.7mm. Experimental and measured results show that the proposed antenna has good circular polarization characteristics.
Keywords :
antenna feeds; microstrip antennas; polarisation; spiral antennas; CNSS dual-band applications; circular patch; circular polarization; frequency 1615 MHz; frequency 2498 MHz; single-feed circularly-polarized antenna; size 19.7 mm; spiral slots; spiral square slots; Antenna measurements; Dual band; Microstrip; Microstrip antennas; Slot antennas; Spirals; CNSS; Dual-band; circularly-polarization; microstrip antenna; spiral slot;
Conference_Titel :
Microwave Conference Proceedings (APMC), 2011 Asia-Pacific
Conference_Location :
Melbourne, VIC
Print_ISBN :
978-1-4577-2034-5
