Patent EP0231422A2 successfully refreshed from Google Patents.
EP0231422A2
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Microwave transmitter/receiver apparatus
Assignee: NEC Corp
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Filing: 1986-04-04
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Granted: —
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Expires: 2006-04-04
Abstract
Abstract The invention relates to a miniaturized microwave transmitter/receiver apparatus which allows the polarization angle of a primary reflector to be readily matched to the polarization plane of a polarized wave. The apparatus comprises a housing (100), a primary radiator (104), a transmit/receive multiplexer for multiplexing a transmit signal and a receive signal, a transmit filter and a receive filter, transmit means connected to the transmit filter for outputting the transmit signal by receiving a predetermined transmit intermediate frequency signal, and receive means connected to the receive filter for outputting a predetermined intermediate frequency signal, the multiplexer, the transmit and the receive filters, the transmit means and the receive means being accomodated in the housing (100).
Inventors
- 👤 Masao C/O Nec Corporation Momose
- 👤 Kazuo C/O Nec Corporation Kosukegawa
- 👤 Noriyuki C/O Nec Corporation Asari
- 👤 Hirohisa C/O Nec Corporation Ozawa
- 👤 Yuhei C/O Nec Corporation Kosugi
- 👤 Osamu C/O Nec Corporation Yamamoto
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-07 21:10
CPC Classifications
H; H01; H01Q; H01Q1/00; H01Q1/12; H01Q1/125; H01Q1/22; H01Q1/24; H01Q1/247; H01Q19/00; H01Q19/10; H01Q19/12; H01Q19/13
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
120 words
A microwave transmitter/receiver apparatus comprising: a housing; a primary radiator; a transmit/receive multiplexer for multiplexing a transmit signal and a receive signal; a transmit filter and a receive filter connected respectively to a transmit input and a receive input of said transmit/receive multiplexer; transmit means connected to said transmit filter for outputting the transmit signal by receiving a predetermined transmit intermediate frequency (IF) signal; and receive means connected to the receive filter for outputtting a predetermined receive IF signal by receiving the receive signal; the transmit/receive multiplexer, the transmit and the receive filters, the transmit means and the receive means being accommodated in the housing; the primary radiator being mounted in an opening of the housing adapted for wave radiation.
Claim 2
Dependent Claim
120 words
A microwave transmitter/receiver apparatus comprising: a housing; a primary radiator; a transmit/receive multiplexer for multiplexing a transmit signal and a receive signal; a transmit filter and a receive filter connected respectively to a transmit input and a receive input of said transmit/receive multiplexer; transmit means connected to said transmit filter for outputting the transmit signal by receiving a predetermined transmit intermediate frequency (IF) signal; and receive means connected to the receive filter for outputtting a predetermined receive IF signal by receiving the receive signal; the transmit/receive multiplexer, the transmit and the receive filters, the transmit means and the receive means being accommodated in the housing; the primary radiator being mounted in an opening of the housing adapted for wave radiation.
Claim 3
Dependent Claim
118 words
A microwave transmitter/receiver apparatus comprising: a housing; a primary radiator; a transmit/receive multiplexer for multiplexing a transmit signal and a receive signal; a transmit filter and a receive filter connected respectively to a transmit input and a receive input of said transmit/receive multiplexer; transmit means connected to said transmit filter for outputting the transmit signal by receiving a predetermined transmit intermediate frequency (IF) signal; and receive means connected to the receive filter for outputting a predetermined receive IF signal by receiving the receive signal; the transmit/receive multiplexer, the transmit and the receive filters, the transmit means and the receive means being accommodated in the housing; at least the multiplexer being provided as a waveguide circuit in the housing.
Claim 4
Dependent Claim
118 words
A microwave transmitter/receiver apparatus comprising: a housing; a primary radiator; a transmit/receive multiplexer for multiplexing a transmit signal and a receive signal; a transmit filter and a receive filter connected respectively to a transmit input and a receive input of said transmit/receive multiplexer; transmit means connected to said transmit filter for outputting the transmit signal by receiving a predetermined transmit intermediate frequency (IF) signal; and receive means connected to the receive filter for outputting a predetermined receive IF signal by receiving the receive signal; the transmit/receive multiplexer, the transmit and the receive filters, the transmit means and the receive means being accommodated in the housing; at least the multiplexer being provided as a waveguide circuit in the housing.
Claim 5
Dependent Claim
25 words
A microwave transmitter/receiver apparatus as claimed in claim 2, wherein the transmit and the receive filters are provided as a waveguide circuit in the housing.
Claim 6
Dependent Claim
30 words
A microwave transmitter/receiver apparatus as claimed in any of claims 1 to 3, further comprising support means for supporting the housing rotatably about a wave radiation axis of the housing.
Claim 7
Dependent Claim
46 words
A microwave transmitter/receiver apparatus as claimed in any of claims 2 to 4, wherein the primary radiator is mounted in a front end portion of the housing such that a center axis of the primary radiator is aligned with a wave radiation axis of the housing.
Claim 8
Dependent Claim
34 words
A microwave transmitter/receiver apparatus as claimed in claim 5, wherein an input/output connector which is connected to the transmit means and the receive means is mounted in a rear end portion of the housing.
Claim 9
Dependent Claim
35 words
A microwave transmitter/receiver apparatus as claimed in any of claims 2 to 6, wherein a plurality of fins for heat radiation are provided in a substantially uniform distribution on an outer periphery of the housing.
Claim 10
Dependent Claim
118 words
A.microwave transmitter/receiver apparatus comprising: a housing; a primary radiator; a transmit/receive multiplexer for multiplexing a transmit signal and a receive signal; a transmit filter and a receive filter connected respectively to a transmit input and a receive input of said transmit/receive multiplexer; transmit means connected to said transmit filter for outputting the transmit signal by receiving a predetermined transmit intermediate frequency (IF) signal; receive means connected to the receive filter for outputting a predetermined receive IF signal by receiving the receive signal; and support means for supporting the housing rotatably about a wave radiation axis of the housing; the multiplexer, the transmit and the receive filters, the transmit means and the receive means being accommodated in the housing.
Claim 11
Dependent Claim
118 words
A.microwave transmitter/receiver apparatus comprising: a housing; a primary radiator; a transmit/receive multiplexer for multiplexing a transmit signal and a receive signal; a transmit filter and a receive filter connected respectively to a transmit input and a receive input of said transmit/receive multiplexer; transmit means connected to said transmit filter for outputting the transmit signal by receiving a predetermined transmit intermediate frequency (IF) signal; receive means connected to the receive filter for outputting a predetermined receive IF signal by receiving the receive signal; and support means for supporting the housing rotatably about a wave radiation axis of the housing; the multiplexer, the transmit and the receive filters, the transmit means and the receive means being accommodated in the housing.
Claim 12
Dependent Claim
27 words
A microwave transmitter/receiver apparatus as claimed in any of claims 4 to 8, wherein said support means includes means for locking the housing in an angular position.
Claim 13
Dependent Claim
33 words
A microwave transmitter/receiver apparatus as claimed in any of claims 1, 8 and 9, wherein the multiplexer and the transmit and the receive filters are provided as a waveguide circuit in the housing.
Claim 14
Dependent Claim
33 words
A microwave transmitter/receiver apparatus as claimed in any of claims 1, 8 and 9, wherein at least the multiplexer is provided as a waveguide circuit in the central partition plate of the housing.
Claim 15
Dependent Claim
35 words
A microwave transmitter/receiver apparatus as claimed in claim 8 or 9, wherein the multiplexer and the transmit and the receive filters are provided as a waveguide circuit in the central partition plate of the housing.
Claim 16
Dependent Claim
17 words
A microwave transmitter/receiver apparatus as claimed in claim 8, wherein the multiplexer comprises an orthogonal mode transducer.
References Cited (Backward Citations)
No citation records indexed.
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