Claims
- 1. A light-weight multi-beam antenna device comprising:
- a plurality of radar modules capable of transmitting and receiving electromagnetic waves, each radar module comprising
- an integrated circuit board having formed thereon a transmitter circuit, a receiver circuit and microstrip transmission lines connected to the transmitter and receiver circuits;
- a plurality of primary radiators formed integrally with respective ones of said plurality of transmitter and receiver circuits, each primary radiator being coupled to a respective transmitter or receiver circuit of a radar module;
- a plurality of fin-line converters formed integrally with and coupled between respective ones of said primary radiators and said transmitter and receiver circuits for converting a propagation mode of electromagnetic waves from a waveguide mode in said respective primary radiators to a microstrip transmission line mode in said respective microstrip transmission lines coupled to said transmitter and receiver circuits; and
- circuitry connected to said transmitter and receiver circuits for enabling operation of said radar modules in a time division multiplexed manner.
- 2. The light-weight multi-beam antenna device of claim 1 further comprising an offset beam reflector, said offset beam reflector being formed integrally with a holder of said radar modules.
- 3. A light-weight multi-beam antenna device comprising:
- a plurality of radar modules capable of transmitting and receiving electromagnetic waves, each radar module comprising
- a first integrated circuit board having a transmitter circuit, receiver circuit, circulator and microstrip transmission line formed thereon, said microstrip transmission line being connected to said transmitter circuit, said receiver circuit and said circulator,
- a second integrated circuit board affixed to said first integrated circuit board and having formed thereon a primary radiator and a fin-line converter, said fin-line converter providing an electrical connection between said primary radiator and said microstrip transmission line of said first integrated circuit board; and
- circuitry connected to said transmitter and receiver circuits for enabling operation of said radar modules in a time division multiplexed fashion.
- 4. The light-weight multi-beam antenna device of claim 1 further comprising an offset beam reflector, said offset beam reflector being formed integrally with a holder of said radar modules.
- 5. A light-weight, multi-beam antenna comprising:
- at least four radar modules, each being housed within a casing having a generally parallel piped structure, and each comprising
- a first integrated circuit board having a transmitter circuit, receiver circuit, circulator and microstrip transmission line formed thereon, said microstrip transmission line being connected to said transmitter circuit, said receiver circuit and said circulator, and
- a second integrated circuit board affixed to said first integrated circuit board and having formed thereon a primary radiator and a fin-line converter, said fin-line converter providing an electrical connection between said primary radiator and said microstrip transmission line of said first integrated circuit board; and an offset reflector attached to said casings of said radar modules;
- said casings of said radar modules being arranged in a generally side-by-side configuration such that said primary radiators of said radar modules are arranged within a linear array, are positioned within a general area of a focal point of said offset reflector, and may be used in conjunction with said offset reflector to effect multi-channel scanning of a horizontal beam.
- 6. A light-weight, multi-beam antenna comprising:
- at least four radar modules, each being housed within a casing having a generally parallel piped structure, and each comprising
- an integrated circuit board having formed thereon a transmitter circuit, a receiver circuit and microstrip transmission lines connected to the transmitter and receiver circuits;
- a plurality of primary radiators formed integrally with respective ones of said plurality of transmitter and receiver circuits, each primary radiator being coupled to a respective transmitter or receiver circuit of a radar module; and
- a plurality of fin-line converters formed integrally with and coupled between respective ones of said primary radiators and said transmitter and receiver circuits for converting a propagation mode of electromagnetic waves from a waveguide mode in said respective primary radiators to a microstrip transmission line mode in said respective microstrip transmission lines coupled to said transmitter and receiver circuits; and
- an offset reflector attached to said casings of said radar modules;
- said casings of said radar modules being arranged in a generally side-by-side configuration such that said primary radiators of said radar modules are arranged within first and second linear arrays, are positioned within a general area of a focal point of said offset reflector, and may be used in conjunction with said offset reflector to effect multi-channel scanning of a horizontal beam.
Priority Claims (1)
Number |
Date |
Country |
Kind |
4-097529 |
Mar 1992 |
JPX |
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Parent Case Info
This is a continuation of application Ser. No. 08/701,002, filed on Aug. 21, 1996, abandoned; which is a continuation of Ser. No. 08/424,588, filed on Apr. 17, 1995, abandoned; which is a continuation of Ser. No. 08/026,501, filed Mar. 4, 1993 abandoned, and which designated the U.S.
US Referenced Citations (7)
Foreign Referenced Citations (2)
Number |
Date |
Country |
57-24968 |
May 1982 |
JPX |
1-126714 |
Aug 1989 |
JPX |
Continuations (3)
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Number |
Date |
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Parent |
701002 |
Aug 1996 |
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Parent |
424588 |
Apr 1995 |
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Parent |
26501 |
Mar 1993 |
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