Antenna arrangement and method relating thereto

Telecommunications – Transmitter and receiver at same station – Radiotelephone equipment detail

Reexamination Certificate

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

C455S272000, C455S277100, C455S025000, C342S386000, C342S373000

Reexamination Certificate

active

07069053

ABSTRACT:
The present invention relates to an omnidirectional base station antenna arrangement with a number of antenna elements and a number of transceiver means for transmitting and receiving signals to/from a number of user stations. A feeding network is provided which comprises a number of phase ports, a number of which form first phase ports connected to a number of transceiver means for downlink communication and a number of which form second phase ports connected to a number of transceiver means for uplink communication. The feeding network comprises a number of antenna ports connected to antenna elements and the feeding network generates substantially independent, orthogonal signals to provide for phase diversity and the antenna elements are arranged to form at least one cylindrical array antenna. The invention also relates to a method of providing communication between an omnidirectional base station antenna arrangement with a number of antenna elements and a number of transceiver means and a number of user stations as well as to a method of providing for at least phase diversity transmission at an omnidirectional base station antenna arrangement.

REFERENCES:
patent: 4424500 (1984-01-01), Viola et al.
patent: 4638317 (1987-01-01), Evans
patent: 5812088 (1998-09-01), Pi et al.
patent: 6081233 (2000-06-01), Johannisson
patent: 6785559 (2004-08-01), Goldberg et al.
patent: 0 755 093 (1997-01-01), None
International Search Report mailed Sep. 28, 2001 in corresponding PCT application No. PCT/SE01/01266.
Mahmoudi et al; “Adaptive Sector Size Control in a CDMA System Using Butler Matrix”, Vehicular Technology Conference, 1999 IEEE 49th, vol. 2, May 16-20, 1999, pp. 1355-1359.
Patent Abstracts of Japan, Abstract of JP 8-111651 A (Miyoshi Denshi KK), Apr. 30, 1996.
De Lillo, “A High Performance 8-Input, 8-Ooutput Butler Matrix Beamforming Network for Ultra-Broadband Applications”, Antennas an Propagation Society International Symposium, 1993, AP-S Digest, vol. 1, pp. 474-477.
Patent Abstracts of Japan, Abstract of JP 2000-022439 (Nippon Telegr & Teleph Corp), Jan. 21, 2000.

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Antenna arrangement and method relating thereto does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Antenna arrangement and method relating thereto, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Antenna arrangement and method relating thereto will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-3621531

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.