Radar transceiver and antenna sharing method thereof
AssigneesImec Vzw, Stitching IMEC Nederland
InventorsMinyoung Song, Peng Zhang, Barend Wilhelmus Marinus van Liempd
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Abstract
A radar transceiver is provided. The radar transceiver includes an electrical balance duplexer that is coupled to a transmission node of a transmission path, a reception node of a reception path, and an antenna node and that is configured to isolate the transmission path from the reception path. The electrical balance duplexer includes a hybrid transformer network and a non-tunable balancing impedance. The non-tunable balancing impedance is configured to provide a fixed impedance value that corresponds to an impedance value at the antenna node.
Claims19
A radar transceiver comprising:
- an electrical balance duplexer coupled to a transmission node of a transmission path, a reception node of a reception path, and an antenna node,
- wherein the electrical balance duplexer is configured to isolate the transmission path from the reception path,
- wherein the electrical balance duplexer comprises a hybrid transformer network and a non-tunable balancing impedance,
- wherein the non-tunable balancing impedance is configured to provide a fixed impedance value that is defined corresponding to an impedance value at the antenna node;
- a first switch coupled across the non-tunable balancing impedance;
- a second switch coupled in-between the non-tunable balancing impedance and a ground potential;
- and
- a switch-control circuit configured to operate the first switch and the second switch.
A method for antenna sharing in a radar transceiver including a first switch, a second switch, and a switch-control unit, the method comprising:
- operating an electrical balance duplexer to isolate a transmission path from a reception path, wherein the electrical balance duplexer comprises a hybrid transformer network and a non-tunable balancing impedance,
- wherein the electrical balance duplexer is coupled to a transmission node of the transmission path, to a reception node of the reception path, and to an antenna node,
- wherein the non-tunable balancing impedance is configured to provide a fixed impedance value that is defined corresponding to an impedance value at the antenna node;
- coupling the first switch across the non-tunable balancing impedance;
- coupling the second switch in-between the non-tunable balancing impedance and a ground potential;
- and
- operating the first switch and the second switch via the switch-control circuit.
Dependencies are inferred from the claim text.