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1. (CN1172555) Antenna

Office : China
Application Number: 96191551.X Application Date: 12.11.1996
Publication Number: 1172555 Publication Date: 04.02.1998
Publication Kind : A
Prior PCT appl.: Application Number:PCTJP9603315 ; Publication Number:9719488 Click to see the data
IPC:
H01Q 21/30
H01Q 1/24
H ELECTRICITY
01
BASIC ELECTRIC ELEMENTS
Q
AERIALS
21
Aerial arrays or systems
30
Combinations of separate aerial units operating in different wavebands and connected to a common feeder system
H ELECTRICITY
01
BASIC ELECTRIC ELEMENTS
Q
AERIALS
1
Details of, or arrangements associated with, aerials
12
Supports; Mounting means
22
by structural association with other equipment or articles
24
with receiving set
CPC:
H01Q 1/244
Applicants: Nippon Antena Kabushiki Kaisha
日本安特尼株式会社
Inventors: Makino Mitsuya
牧野光弥
Agents: HUANG YONGKUI
中科专利代理有限责任公司
中科专利代理有限责任公司
Priority Data: 326249/95 22.11.1995 JP
Title: (EN) Antenna
(ZH) 天线
Abstract: front page image
(EN) When the antenna element is expanded, a helical element(4)acts as a parasitic element, and a high-frequency current flows through an element conductor(3), causing the helical element(4)to act as a parasitic element which is excited by a high frequency wave way. When the antenna element is housed, electrical energy is fed to the upper end of the helical element(4)from the upper end of an upper conductor section(6), and the overlapping parts of the helical element(4)and conductor section(6)form an L-C parallel resonance circuit. Therefore, the antenna performs a two-resonance operation.
(ZH)

天线元件伸长时,螺旋型元件4成为无供电元件,通过流入导体元件3的高频电流激励螺旋型元件4,使螺旋型元件4成为寄生元件。当天线元件收进时,通过上部导体6的上端向螺旋型元件4的上端供电,螺旋型元件4和上部导体6相重合的部分形成L-C并联共振电路。因此,天线成为按双共振方式工作。


Also published as:
EP0805506KR1019980701595WO/1997/019488