Title:
LOW FREQUENCY BAND HELICAL ANTENNA HAVING OPEN STUB
Document Type and Number:
Japanese Patent JP2008061243
Kind Code:
A
Abstract:
To provide a low frequency band helical antenna having an open stub which operates in a low frequency band and can be compact-sized, but without causing decrease of input resistance and increase of input reactance.
A low frequency band helical antenna comprising an open stub is provided, which includes a helix formed on at least a part; and a radiator comprising the open stub formed on one end in parallel relation with a ground. As a result, a compact helical antenna, which is sized to a quarter length of a monopole antenna, can be provided. Additionally, efficiency of the antenna is improved and the frequency bandwidth can be increased, by increasing the input resistance and decreasing the input reactance.
Inventors:
PARK SE-HYUN
KIM YOUNG-EIL
PARK WEE-SANG
LEE DONG HYUN
KIM YOUNG-EIL
PARK WEE-SANG
LEE DONG HYUN
Application Number:
JP2007220526A
Publication Date:
March 13, 2008
Filing Date:
August 28, 2007
Export Citation:
Assignee:
SAMSUNG ELECTRONICS CO LTD
SAMSUNG ELECTRO MECH
SAMSUNG ELECTRO MECH
International Classes:
H01Q11/08
Domestic Patent References:
| JP2004518318A | 2004-06-17 | |||
| JP2001127527A | 2001-05-11 | |||
| JP2006180408A | 2006-07-06 | |||
| JPH11163620A | 1999-06-18 | |||
| JPH11177334A | 1999-07-02 |
Attorney, Agent or Firm:
Yukio Ono
Tomoko Inazumi
Tomoko Inazumi
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