Title :
2.4 GHz ISM band antenna for PC cards
Author :
Ng, A.K.P. ; Lau, J. ; Murch, R.D.
Author_Institution :
Dept. of Electr. & Electron. Eng., Hong Kong Univ. of Sci. & Technol., Kowloon, Hong Kong
Abstract :
We present preliminary investigations into the design of antennas for use in PC cards that communicate in the 2.4 GHz ISM band. Design criteria which are considered desirable for those antenna include, compact size with low profile, low cost, 80 MHz bandwidth with sharp cutoff, vertical null in the antenna pattern, good efficiency, flexible impedance matching to CMOS LNA, circular polarization and possible differential operation. Experimental results from two antenna designs consisting of a PIFA and a dual PIFA configuration are described.
Keywords :
CMOS integrated circuits; UHF amplifiers; UHF antennas; add-on boards; antenna radiation patterns; electromagnetic wave polarisation; impedance matching; microcomputer applications; wireless LAN; 2.4 GHz; 80 MHz; CMOS LNA; ISM band antenna; PC cards; PIFA; UHF; antenna design; antenna pattern vertical null; bandwidth; circular polarization; compact size; differential operation; dual PIFA; efficiency; experimental results; impedance matching; low cost antenna; low profile; sharp cutoff; wireless LAAN; Circuits; Costs; Feeds; Filtering; Geometry; Impedance matching; Lifting equipment; Matched filters; Polarization; Wireless LAN;
Conference_Titel :
Antennas and Propagation Society International Symposium, 1999. IEEE
Conference_Location :
Orlando, FL, USA
Print_ISBN :
0-7803-5639-x
DOI :
10.1109/APS.1999.788368
