Patent EP0214806A2 successfully refreshed from Google Patents.
EP0214806A2
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Portable radio
Assignee: NEC Corp
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Filing: 1986-08-26
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Granted: —
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Expires: 2006-08-26
Abstract
Abstract A portable transceiver has a narrow band square microstrip antenna (1) connected to a first radio receiver, a wideband sleeve or whip antenna (2) connected to an associated duplexer, and a second radio receiver and a transmitter both connected to the wideband antenna via the duplexer. The square microstrip antenna (1) isformed of a conductive emission plate (14) and a conductive ground plate (16) joined by a conductive connector plate (18). A housing (3) enclosing the transceiver has an earphone (4) and microphone (5) set in its front side, the microstrip antenna (1) under its back side, and the wideband sleeve or whip antenna (2) mounted upright on its top side.
Inventors
- 👤 Kazuya Hashimoto
- 👤 Hiroshi Asazawa
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-07 14:30
CPC Classifications
H; H01; H01Q; H01Q1/00; H01Q1/12; H01Q1/22; H01Q1/24; H01Q1/241; H01Q1/242; H01Q21/00; H01Q21/28; H01Q9/00; H01Q9/04; H01Q9/0407; H01Q9/0421; H01Q9/30
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
69 words
A portable transceiver comprising a square microstrip antenna (1) having a conductive emission plate (14), a conductive ground plate (16) and a conductive connector plate (18) connecting together the emission and ground plates; a first radio receiver (8) connected to the microstrip antenna; a wideband antenna (2); a duplexer (10); and a second radio receiver (9) and a transmitter (7), both connected via the duplexer to the wideband antenna.
Claim 2
Dependent Claim
69 words
A portable transceiver comprising a square microstrip antenna (1) having a conductive emission plate (14), a conductive ground plate (16) and a conductive connector plate (18) connecting together the emission and ground plates; a first radio receiver (8) connected to the microstrip antenna; a wideband antenna (2); a duplexer (10); and a second radio receiver (9) and a transmitter (7), both connected via the duplexer to the wideband antenna.
Claim 3
Dependent Claim
18 words
A portable transceiver according to claim 1, characterised in that the wideband antenna (2) is a sleeve antenna.
Claim 4
Dependent Claim
18 words
A portable transceiver according to claim 1, characterised in that the wideband antenna (2) is a whip antenna.
Claim 5
Dependent Claim
68 words
A portable transceiver according to claim 1, 2 or 3, characterised in that the transceiver has a housing (3), and an earphone (4) and a microphone (5) disposed in a front side of the housing, the square microstrip antenna (1) being disposed within the housing under a side opposite the front side with the microphone, and the housing having a top side which supports the wideband antenna (2).
Claim 6
Dependent Claim
128 words
A portable transceiver comprising a housing (3) having a wideband antenna (2) attached to and projecting from a first housing side, a narrow band antenna (1) enclosed within the housing at a first location which is removed from the wideband antenna, transmitter (5) and receiver (4) transducers mounted on the housing at locations opposing the said first location, a first receiver circuit (8) coupled to reproduce signals picked up by the narrow band antenna and to apply them to the receiver transducer (4), a duplexer (10), a second receiver circuit (9) and a transmitter circuit (7) coupled through the duplexer to the wideband antenna, the second receiver circuit (9) being coupled to the receiver transducer (4), and the transmitter circuit (7) being coupled to the transmitter transducer (5).
Claim 7
Dependent Claim
128 words
A portable transceiver comprising a housing (3) having a wideband antenna (2) attached to and projecting from a first housing side, a narrow band antenna (1) enclosed within the housing at a first location which is removed from the wideband antenna, transmitter (5) and receiver (4) transducers mounted on the housing at locations opposing the said first location, a first receiver circuit (8) coupled to reproduce signals picked up by the narrow band antenna and to apply them to the receiver transducer (4), a duplexer (10), a second receiver circuit (9) and a transmitter circuit (7) coupled through the duplexer to the wideband antenna, the second receiver circuit (9) being coupled to the receiver transducer (4), and the transmitter circuit (7) being coupled to the transmitter transducer (5).
Claim 8
Dependent Claim
31 words
A transceiver according to claim 5, characterised in that the narrow band antenna (1) includes a ground plate (16) connected via a connector plate (18) to a conductive emission plate (14).
Claim 9
Dependent Claim
19 words
A transceiver according to claim 6, characterised in that the narrow band antenna (1) is a square microstrip antenna.
Claim 10
Dependent Claim
54 words
A transceiver according to claim 5, 6 or 7, characterised in that the transmitter (5) and receiver (4) transducers are at spaced locations on the housing which induces a user to hold a particular end of the housing, and the said first location is at a position which is remote from that particular end.
Claim 11
Dependent Claim
21 words
A transceiver according to claim 5, 6, 7 or 8, characterised in that the wideband antenna (2) is a sleeve antenna.
Claim 12
Dependent Claim
21 words
A transceiver according to claim 5, 6, 7 or 8, characterised in that the wideband antenna (2) is a whip antenna.
References Cited (Backward Citations)
No citation records indexed.
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