Patent EP0070150B1 successfully refreshed from Google Patents.
EP0070150B1
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Antenna arrangement for personal radio transceivers
Assignee: BRG MECHATRONIKAI VALLALAT
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Filing: 1982-07-08
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Granted: 1990-04-18
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Expires: 2002-07-08
Abstract
Abstract An antenna arrangement is disclosed for personal radio transceivers in which a main antenna (1) extends out from the housing (3) of the transceiver excited by the high frequency connector thereof and an auxiliary antenna (4) is coupled to the cold terminal of the connector to form a counterweight to the main antenna (1). Both the main and auxiliary antennas (1, 4) are resonant and shorter than the quarterwave-length, whereby the housing (3) gets to a potential minimum and the effects of the close presence of the human body on the radiational properties will be reduced.
Inventors
- 👤 Mihaly Nemet
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-26 21:35
CPC Classifications
H; H01; H01Q; H01Q1/00; H01Q1/27; H01Q1/273
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
104 words
A personal radio transceiver of the hand-held type, the transceiver being housed in a single housing and comprising a high-frequency connector having a high-frequency terminal coupled to a resonant main antenna shorter than a quarterwavelength at the operating frequency and a ground terminal coupled to the housing characterized in that the ground terminal of said connector is connected to a resonant auxiliary antenna (4) shorter than the quarterwavelength and forming a counterpoise to said main antenna (1), the resonant auxiliary terminal being mounted on the housing and extending wholly outside the housing, in use, extending away from the housing and from said main antenna.
Claim 2
Dependent Claim
104 words
A personal radio transceiver of the hand-held type, the transceiver being housed in a single housing and comprising a high-frequency connector having a high-frequency terminal coupled to a resonant main antenna shorter than a quarterwavelength at the operating frequency and a ground terminal coupled to the housing characterized in that the ground terminal of said connector is connected to a resonant auxiliary antenna (4) shorter than the quarterwavelength and forming a counterpoise to said main antenna (1), the resonant auxiliary terminal being mounted on the housing and extending wholly outside the housing, in use, extending away from the housing and from said main antenna.
Claim 3
Dependent Claim
23 words
The personal radio transceiver as claimed in claim 1, characterised in that the auxiliary antenna (4) is substantially normal to the main antenna.
Claim 4
Dependent Claim
42 words
The personal radio transceiver as claimed in claims 1 or 2, characterised in that said main antenna (1) is arranged at an end portion of the housing (3) of the transceiver and said auxiliary antenna (4) at the other end portion thereof.
Claim 5
Dependent Claim
30 words
The personal radio transceiver as claimed in any of claims 1 to 3, characterised in that said auxiliary antenna (4) is coupled through a pivot (5) to said housing (3).
References Cited (Backward Citations)
No citation records indexed.
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