EP0246026A2
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Antenna for wireless communication equipment
Assignee: Uniden Corp
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Filing: 1987-05-06
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Granted: —
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Expires: 2007-05-06
Abstract
Abstract An antenna (100) has a main vertical planar part (101) which is connected at its one end to the ground (110), and a main horizontal planar part (102) which are both arranged in an L-shape. It has a secondary vertical linear part (103) which is arranged in parallel with the main vertical planar part (101) and connected at its one end to the feeding point (P). It also has a conductive secondary horizontal planar part (104) which is connected between the main horizontal planar part (102) and the secondary vertical linear part (103) and is arranged in parallel with the main horizontal planar part (102), while being separated from the main horizontal planar part (102) by a definite distance. This makes it possible to incorporate the antenna (100) in the circuit board (120) of wireless communication equipment, and the antenna (100) is particularly suitable for miniaturizing the equipment.
Inventors
- 👤 Hideo Hikuma
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-27 20:29
CPC Classifications
H; H01; H01Q; H01Q1/00; H01Q1/12; H01Q1/22; H01Q1/24
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
185 words
An antenna (100) for wireless communication equipment comprising: conductive main generally vertical planar part (101) having a first width which stands erect, and which is connected at its one end to the ground (110); a conductive main generally horizontal planar part (102) having a second width which extends at substantially right angles towards said main vertical planar part (101), and which is connected at its one end to the other end of the main vertical planar part (101); a conductive secondary generally vertical linear part (103) which faces towards and extends in parallel to said main vertical planar part (101), and which is connected at its one end to the feeding point (P) ; and a conductive secondary generally horizontal linear part (104) which extends in parallel to said main horizontal planar part (102), separated from said main horizontal planar part (102) by a definite distance, and which is connected at its one end to the other end of said secondary vertical linear part (103), and which is connected at the other end thereof to the other end of said main horizontal planar part (102).
Claim 2
Dependent Claim
185 words
An antenna (100) for wireless communication equipment comprising: conductive main generally vertical planar part (101) having a first width which stands erect, and which is connected at its one end to the ground (110); a conductive main generally horizontal planar part (102) having a second width which extends at substantially right angles towards said main vertical planar part (101), and which is connected at its one end to the other end of the main vertical planar part (101); a conductive secondary generally vertical linear part (103) which faces towards and extends in parallel to said main vertical planar part (101), and which is connected at its one end to the feeding point (P) ; and a conductive secondary generally horizontal linear part (104) which extends in parallel to said main horizontal planar part (102), separated from said main horizontal planar part (102) by a definite distance, and which is connected at its one end to the other end of said secondary vertical linear part (103), and which is connected at the other end thereof to the other end of said main horizontal planar part (102).
Claim 3
Dependent Claim
58 words
The antenna (100) for wireless communication equipment of claim 1 in which the other end of said secondary horizontal linear part (104) is connected electrically by a coupling part (105) to the other end position of said main horizontal planar part (102) or to a part which is separated by a predetermined distance from said other end position.
Claim 4
Dependent Claim
47 words
The antenna (100) for wireless communication equipment of claim 1 in which the secondary horizontal linear part (104) has along all or part of its length a first conductor width part (106) having a first width (t l ) which makes up a capacitor for impedance adjustment.
Claim 5
Dependent Claim
47 words
The antenna (100) for wireless communication equipment of claim 1 in which the secondary horizontal linear part (104) has along part of its length a second conductor width part (107) having a second width (t 2 ) which makes up a capacitor for adjusting the center frequency.
Claim 6
Dependent Claim
47 words
The antenna (100) for wireless communication equipment of claim 3 in which the secondary horizontal linear part (104) has along part of its length a second conductor width part (107) having a second width (t 2 ) which makes up a capacitor for adjusting the center frequency.
Claim 7
Dependent Claim
58 words
The antenna (100) for wireless communication equipment of claim 1 in which the main vertical planar part (101) and the main horizontal planar part (102) are made up by forming steel sheets in an L-shape, and the secondary vertical linear part (103) and the secondary horizontal linear part (104) are formed by printing on a circuit board (120).
Claim 8
Dependent Claim
23 words
The antenna (100) for wireless communication equipment of claim 6 in which the ground (110) is a shield housing which shields the circuitry.
References Cited (Backward Citations)
No citation records indexed.
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