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[天线]A low-profile omnidirectional circularly polarized antenna for WLAN access point

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0楼发表于: 2009-04-29 15:56:01

  A low-profile omnidirectional circularly polarized antenna for WLAN access point
Wong, Kin-Lu1; Hsiao, Fu-Ren1; Tang, Chia-Lun2 Source: IEEE Antennas and Propagation Society, AP-S International Symposium (Digest), v 3, p 2580-2583, 2004, IEEE Antennas and Propagation Society Symposium 2004 Digest held in Conjunction with: USNC/URSI National Radio Science Meeting
ISSN: 15223965 CODEN: IAPSBG
Conference: IEEE Antennas and Propagation Society Symposium 2004 Digest held in Conjunction with: USNC/URSI National Radio Science Meeting, June 20,2004 - June 25,2004 Sponsor: IEEE Antennas and Propagation Society; URSI/USNC
Publisher: Institute of Electrical and Electronics Engineers Inc.

Author affiliation:
1  Department of Electrical Engineering, National Sun Yat-Sen University, Kaohsiung 804, Taiwan
2  Comp. and Commun. Res. Laboratories, Indust. Technol. Research Institute, Hsinchu 310, Taiwan

Abstract: A new omnidirectional circularly polarized (CP) antenna for WLAN access point was proposed. The proposed antenna consists of a top-loaded cylindrical monopole for generating omnidirectional vertical linear polarization (LP) radiation and four printed arc-shaped dipoles for generating omnidirectional horizontal LP radiation. Good impedance matching for the proposed antenna can be achieved by tuning the diameter of the cylindrical monopole. The measured return loss bandwidth is 110 MHz, which covers the 2.4 GHz WLAN band. (3 refs.)

Controlled terms:  Bandwidth  -  Computer simulation  -  Impedance matching (electric)  -  Local area networks  -  Microstrip lines  -  Polarization  -  Substrates

Uncontrolled terms:  Circularly polarized (CP) antennas  -  Linear polarization (LP)  -  Linear radiation patterns

Classification Code:   701.1 Electricity: B ..

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