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US 6,501,415 B1Granted
Highly integrated single substrate MMW multi-beam sensor
AssigneeRaytheon Company
InventorsLuis M. Viana, Michael Joseph Delcheccolo, Joseph S. Pleva, Mark E. Russell, Walter Gordon Woodington, H. Barteld Van Rees, Stephen P. LeBlanc
Life of this patent
Estimating the term…
Abstract
A multiple beam array antenna system comprises a plurality of radiating elements provided from stripline-fed open-ended waveguide coupled to a Butler matrix beam forming network. The Butler matrix beam forming network is coupled to a switched beam combining circuit. The antenna can be fabricated as a single Low Temperature Co-fired Ceramic (LTCC) circuit.
Claims22
A radar sensor comprising:
- a housing having a base portion and a cover portion;
- a first substrate having first and second opposing surfaces;
- said first substrate disposed in the base portion of said housing;
- an antenna disposed on the first surface of said first substrate, said antenna having an antenna aperture disposed to radiate through a portion of the base portion of said housing;
- an RF transmit circuit disposed on the second surface of said first substrate, said RF transmit circuit coupled to said antenna;
- an RF receiver circuit disposed on the second surface of said first substrate, said RF receiver circuit coupled to said antenna;
- a second substrate disposed in the base portion of said housing above said first substrate, said second substrate having first and second opposing surfaces;
- one or more IF circuit components disposed on a first one of the first and second opposing surfaces of said second substrate,
- means for coupling at least one of the RF transmit and RF receiver circuits to at least one said one or more IF circuit components;
- and
- an EMI shield disposed over said first and second substrates to reduce the amount of EMI radiated from the sensor.
8 more elements
A radar sensor comprising:
- a housing having:
- a base portion having integral sides and an internal surface;
- a first support structure disposed on the integral sides;
- a second support structure disposed on the base portion;
- a first substrate having first and second opposing surfaces, said first substrate disposed on the first support structure and spaced apart from the internal surface by a predetermined distance;
- an antenna disposed on the first surface of said first substrate, the antenna having an aperture arranged to radiate through a portion of the base portion of said housing;
- an RF transmit circuit disposed on the second surface of said first substrate and coupled to said antenna;
- an RF receiver circuit disposed on the second surface of said first substrate, said RF receiver circuit coupled to said antenna;
- a second substrate disposed on the second support structure in the base portion of said housing said second substrate having first and second opposing:
- surfaces with the first surface of said second substrate spaced apart from the second surface of said first substrate by a predetermined distance;
- and
- one or more IF circuit components disposed on a first one of the first and second surfaces of said second substrate with at least one of said one or more IF circuit components coupled to at least one of said RF transmit circuit and said RF receiver circuit.
9 more elements
A radar sensor comprising:
- a housing having an internal surface and a first support structure and a second support structure disposed thereon;
- a first substrate comprising a plurality of low temperature co-fired ceramic (LTCC) layers, said first substrate disposed on the first support structure and spaced apart from the internal surface by a predetermined distance,
- an antenna provided from the LTCC layers;
- an RF transmitter circuit provided in the LTCC layers;
- an RF receiver circuit provided in the LTCC layers;
- a second substrate disposed on the second support structure and spaced above said first substrate by a predetermined distance;
- and
- an IF circuit disposed on the second substrate.
5 more elements
Dependencies are inferred from the claim text.