Apparatus and methods for antenna sharing in a mobile device
First Claim
1. A mobile device comprising:
- a plurality of antennas including a first antenna and a second antenna;
a plurality of transceivers including a WiFi transceiver; and
a switching circuit configured to control access of the plurality of transceivers to the plurality of antennas, the switching circuit including a multi-pole multi-throw switch and a single-pole multi-throw switch, the switching circuit having a first mode in which the switching circuit electrically connects the WiFi transceiver to the first antenna via a first transmit signal pathway through the multi-pole multi-throw switch, and a second mode in which the switching circuit electrically connects the WiFi transceiver to the second antenna via a second transmit signal pathway through both the multi-pole multi-throw switch and the single-pole multi-throw switch, the multi-pole multi-throw switch including an insertion loss component along the first transmit signal pathway to substantially match a total insertion loss of the first transmit signal pathway and a total insertion loss of the second transmit signal pathway.
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Abstract
Disclosed herein are apparatus and methods for antenna sharing in a mobile device. In certain configurations, a mobile device includes a switching circuit that controls access of a plurality of transceivers to a plurality of antennas. The switching circuit includes a multi-pole multi-throw switch and a single-pole multi-throw switch, and has a first mode in which the switching circuit electrically connects a WiFi transceiver to a first antenna via a first transmit signal pathway through the multi-pole multi-throw switch. The switching circuit also has a second mode in which the switching circuit electrically connects the WiFi transceiver to a second antenna via a second transmit signal pathway through both the multi-pole multi-throw switch and the single-pole multi-throw switch. The multi-pole multi-throw switch includes an insertion loss component along the first transmit signal pathway to substantially match a total insertion loss of the first and second transmit signal pathways.
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Citations
20 Claims
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1. A mobile device comprising:
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a plurality of antennas including a first antenna and a second antenna; a plurality of transceivers including a WiFi transceiver; and a switching circuit configured to control access of the plurality of transceivers to the plurality of antennas, the switching circuit including a multi-pole multi-throw switch and a single-pole multi-throw switch, the switching circuit having a first mode in which the switching circuit electrically connects the WiFi transceiver to the first antenna via a first transmit signal pathway through the multi-pole multi-throw switch, and a second mode in which the switching circuit electrically connects the WiFi transceiver to the second antenna via a second transmit signal pathway through both the multi-pole multi-throw switch and the single-pole multi-throw switch, the multi-pole multi-throw switch including an insertion loss component along the first transmit signal pathway to substantially match a total insertion loss of the first transmit signal pathway and a total insertion loss of the second transmit signal pathway. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A method of antenna sharing in a mobile device, the method comprising:
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controlling access of a WiFi transceiver to a first antenna and a second antenna using a switching circuit that includes a multi-pole multi-throw switch and a single-pole multi-throw switch; electrically connecting the WiFi transceiver to the first antenna via a first transmit signal pathway through the multi-pole multi-throw switch in a first mode of the switching circuit; electrically connecting the WiFi transceiver to the second antenna via a second transmit signal pathway through both the multi-pole multi-throw switch and the single-pole multi-throw switch in a second mode of the switching circuit; and substantially matching a total insertion loss of the first transmit signal pathway and a total insertion loss of the second transmit signal pathway using an insertion loss component of the multi-pole multi-throw switch. - View Dependent Claims (14)
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15. A die comprising:
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a substrate; a WiFi transmit terminal; a plurality of antenna terminals including a first antenna terminal and a second antenna terminal; and a switching circuit formed on the semiconductor substrate and including a multi-pole multi-throw switch and a single-pole multi-throw switch, the switching circuit having a first mode in which the switching circuit electrically connects the WiFi transmit terminal to the first antenna terminal via a first transmit signal pathway through the multi-pole multi-throw switch, and a second mode in which the switching circuit electrically connects the WiFi transmit terminal to the second antenna terminal via a second transmit signal pathway through both the multi-pole multi-throw switch and the single-pole multi-throw switch, the multi-pole multi-throw switch including an insertion loss component along the first transmit signal pathway to substantially match a total insertion loss of the first transmit signal pathway and a total insertion loss of the second transmit signal pathway. - View Dependent Claims (16, 17, 18, 19, 20)
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Specification