Paper Info
Title
60-Ghz-Band Switched-Beam Eight-Sector Antenna With Sp8t Switch For 180 Degrees Azimuth Scan
Abstract
This paper proposes a new switched-beam eight-sector antenna tor multi-gigabit wireless LAN in the 60-GHz band Our antenna system introduces access-point (AP) and user-terminal (UT) antennas having the same sec theta pattern in the elevation plane so that the received signal power at the receiver is kept constant independent of the position of the UT For this system. an eight-sector antenna a single-pole eight-throw (SP8T) switch, and a beam control unit arc integrated as the switched-beam eight-sector antenna The specifications of the antenna are wide bandwidth (>= 3 GHz). high-gain (>= 13 dBi at theta=66 degrees). and wide coverage area in both azimuth (0 degrees <= phi <= 180 degrees) and elevation planes (0 degrees <= theta <= 66 degrees) The antenna beam is steered within the specified response time (which is short) by the Media Access Control (MAC) In our antenna. both high :lam for a wide elevation angle and wide bandwidth ale obtained by using the proposed closely spaced waveguide slot array antenna. which is used as each sector of the eight-sector antenna The SP8T switch with the beam control unit enables 180 degrees beam scan in the azimuth plane In a component evaluation. the eight-sector antenna achieves a 10-dB return loss bandwidth of 8 GHz with more than 40-dB port-to-port isolation Radiation characteristics of the eight-sector antenna indicate that It covers 82% of the entire coverage area at the center frequency and that the covet age rate in the operating frequency band is from 78% to 88% The performance of the SP8T switch and the beam control unit is verified by measuring the insertion kiss at all eight ports and the switching response time In the antenna system evaluation. measurement by using two prototype antennas as the AP and the UT antennas in the usage condition indicates that the measured received signal power meets the specified constant power for the specified wide elevation angle range. independent of the position of the UT These experimental results verify the effectiveness of our proposed antenna for multi-gigabit WLAN.
Year
DOI
Venue
2010
10.1587/transcom.E93.B.551
IEICE TRANSACTIONS ON COMMUNICATIONS
Keywords
Field
DocType
millimeter wave, wireless LAN, switched-beam antenna, multi-sector antenna, single-pole eight-throw switch
Omnidirectional antenna,Antenna (radio),Telecommunications,Antenna measurement,Antenna rotator,Computer science,Computer network,Antenna efficiency,Optics,Antenna factor,Beam waveguide antenna,Antenna noise temperature
Journal
Volume
Issue
ISSN
E93B
3
0916-8516
Citations 
PageRank 
References 
1
0.41
2
Authors
4
Name
Order
Citations
PageRank
Amane Miura152.01
Masataka Ohira225.76
Shoichi Kitazawa312.10
Masazumi Ueba4186.96