Electronic Device With Over-The-Air Wireless Self-Testing Capabilities
First Claim
1. Apparatus, comprising:
- a first antenna in a first signal path;
a second antenna in a second signal path;
wireless communications circuitry configured to convey radio-frequency signals at a frequency greater than 10 GHz using the first and second antennas;
a coupler interposed in the first signal path; and
control circuitry configured to gather impedance measurements using the coupler.
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Abstract
An electronic device may be provided with wireless circuitry. The wireless circuitry may include antennas. The antennas may include phased antenna arrays for handling millimeter wave signals. Antennas may be located in antenna signal paths. The antenna signal paths may include adjustable components such as adjustable filters, adjustable gain amplifiers, and adjustable phase shifters. Circuitry may be incorporated into an electronic device to facilitate wireless self-testing operations. Wireless self-testing may involve use of one antenna to transmit an over-the-air antenna test signal that is received by another antenna. The circuitry that facilitates the wireless self-testing operations may include couplers, adjustable switches for temporarily shorting antenna signal paths together, mixers for mixing down radio-frequency signals to allow digitization with analog-to-digital converters, and other circuitry for supporting self-testing operations.
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Citations
20 Claims
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1. Apparatus, comprising:
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a first antenna in a first signal path; a second antenna in a second signal path; wireless communications circuitry configured to convey radio-frequency signals at a frequency greater than 10 GHz using the first and second antennas; a coupler interposed in the first signal path; and control circuitry configured to gather impedance measurements using the coupler. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 14)
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13. Apparatus, comprising:
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a first antenna in a first signal path; a second antenna in a second signal path; wireless communications circuitry configured to convey radio-frequency signals at a frequency between 10 GHz and 400 GHz using the first and antennas; and a switching circuit coupled between the first and second signal paths, wherein the wireless communications circuitry comprises; baseband processor circuitry, and transceiver circuitry interposed between the baseband processor circuitry and the first and second antennas. - View Dependent Claims (15, 16, 17)
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18. An electronic device comprising:
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a conductive housing; a display having a display cover layer that is mounted to the conductive housing; a first millimeter wave antenna mounted in conductive the housing; and a second millimeter wave antenna mounted in the conductive housing, wherein the first and second millimeter wave antennas are configured to transmit antenna signals through the display cover layer. - View Dependent Claims (19, 20)
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Specification