TRANSMISSION/RECEPTION-SEPARATED POLARIZATION-SHARED ANTENNA

WIPO Patent Application WO/2013/084585

A1

The objective of the invention is to reduce coupling between transmission and reception while achieving sharing polarizations between transmission and reception bands. A transmission band patch antenna (3-T) and a reception band patch antenna (3-R), which are disposed with a given spacing therebetween, each comprise: an upper grounded conductor (9); a lower grounded conductor (19); feeding lines (15) disposed between the grounded conductors (9, 19); a feeding slot (13) formed in the upper grounded conductor (9); a patch (5) that is electromagnetically coupled to the feeding lines (15) through the feeding slot (13); and electromagnetic shields (23, 29) that are connected to the upper and lower grounded conductors (9, 19) in such a manner that the electromagnetic shields (23, 29) surround the feeding lines (15). The feeding lines (15) include mutually independent feeding conductors (15a, 15b) corresponding to respective polarizations.

SATO KEISUKE (JP)
NAKANO MASAYUKI (JP)
MATSUNO HIROMI (JP)

PCT/JP2012/076199

June 13, 2013

October 10, 2012

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DENKI KOGYO COMPANY LTD (JP)
KDDI CORP (JP)

H01Q13/08; H01Q1/52; H01Q21/24

JP2000278039A	2000-10-06
JP2000510305A	2000-08-08
JP2007088882A	2007-04-05
JP2005244317A	2005-09-08
JPH0541608A	1993-02-19
JP2009071795A	2009-04-02
JPH05175727A	1993-07-13

KEIZO CHO; RYO YAMAGUCHI; HUILING JIANG: "Base Station and Terminal Antenna Technologies Required for Next Generation Mobile Communication Systems", JOURNAL OF THE INSTITUTE OF ELECTRONICS, INFORMATION AND COMMUNICATION ENGINEERS, vol. J85-B, no. 9, September 2008 (2008-09-01), pages 886 - 900
See also references of EP 2790270A4

OKUYAMA, Shoichi et al. (JP)
Okuyama In addition, it is 1. (JP)

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