Title:
プレーナアンテナおよびそれを含むデュアルバンド送信装置
Document Type and Number:
Japanese Patent JP4249411
Kind Code:
B2
Abstract:
A dual band transmission device includes a microstrip antenna. Its patch is provided with a short circuit for setting up quarter-wave resonant modes. A slot penetrates into the patch from its periphery, in the vicinity of the short circuit, and separates a first region from a second region, which second region nevertheless remains connected to the first region by a passage. Two resonant modes are obtained, one in the first region and the other in the first region, the passage and the second region. They can be excited from a common connecting line. According to the invention, the center frequencies and the pass-bands of the two modes are adjusted by means of a reactive component such as a capacitor which couples the first region to the second region in the vicinity of the origin of the slot. The invention applies in particular to producing a dual mode mobile telephone system conforming to the GSM and DCS standards.
Inventors:
Siaruru Ngnu Quam
Jiyang-Filip Coupe
Jiyang-Filip Coupe
Application Number:
JP2001393380A
Publication Date:
April 02, 2009
Filing Date:
December 26, 2001
Export Citation:
Assignee:
Alcatel-Lucent
International Classes:
H01Q13/08; H01Q21/30; H01Q1/24; H01Q5/00; H01Q5/10; H01Q5/321; H01Q5/364; H01Q13/10; H04B1/03
Domestic Patent References:
| JP9162634A | ||||
| JP62179201A | ||||
| JP64001313A | ||||
| JP10209745A | ||||
| JP7288423A | ||||
| JP11008509A | ||||
| JP11317615A | ||||
| JP11340728A |
Attorney, Agent or Firm:
Yoshio Kawaguchi
Makoto Ono
Chihiro Watanabe
Kenkyo Kanayama
Katsuma Osaki
Mitsuaki Tsubokura
Makoto Ono
Chihiro Watanabe
Kenkyo Kanayama
Katsuma Osaki
Mitsuaki Tsubokura