Title:
STRIP LINE FEED CIRCUIT AND TRIPLATE TYPE PLANE SECTOR BEAM ANTENNA PROVIDED WITH THE FEED CIRCUIT
Document Type and Number:
Japanese Patent JP2008042375
Kind Code:
A
Abstract:
To provide a strip line feed circuit capable of surely laying a strip line even when the laying space of the strip line is limited, and a triplate type plane sector beam antenna.
Output impedance converters 23a and 23d for supplying reference output power to antenna elements 14a and 14d and an impedance converter 22a for distribution are directly connected to each other, and output impedance converters 23b, 23c, 23e and 23f for supplying the other output power to antenna elements 14b, 14c, 14e and 14f, are connected via a meander shape line 20 to the other impedance converters 22b and 22d for distribution, respectively.
Inventors:
FUJITA MITSUHIRO
HIGAKI KENJI
UCHIYAMA KOICHI
HIGAKI KENJI
UCHIYAMA KOICHI
Application Number:
JP2006211869A
Publication Date:
February 21, 2008
Filing Date:
August 03, 2006
Export Citation:
Assignee:
JAPAN RADIO CO LTD
International Classes:
H01Q21/06; H01P5/12; H01Q13/08
Domestic Patent References:
| JPH11195924A | 1999-07-21 | |||
| JPH05183328A | 1993-07-23 | |||
| JP2004072432A | 2004-03-04 | |||
| JPH01157603A | 1989-06-20 | |||
| JPH0697729A | 1994-04-08 |
Attorney, Agent or Firm:
Takehiro Chiba
Toshiyuki Miyadera
Naoki Kashima
Yasuo Takubo
Toshiyuki Miyadera
Naoki Kashima
Yasuo Takubo