Electronic device with over-the-air wireless self-testing capabilities
First Claim
1. Apparatus, comprising:
- a first antenna in a first antenna signal path;
a second antenna in a second antenna signal path;
wireless circuitry that is configured to transmit an over-the-air antenna signal at a millimeter wave frequency using the first antenna and that is configured to receive the transmitted over-the-air antenna signal from the first antenna using the second antenna;
control circuitry configured to perform wireless test measurements using the antenna signal received using the second antenna;
a switching circuit coupled between the first and second antenna signal paths; and
a coupler interposed on the first antenna signal path and coupled to the second antenna signal path through the switching circuit.
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Accused Products
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 antenna signal path; a second antenna in a second antenna signal path; wireless circuitry that is configured to transmit an over-the-air antenna signal at a millimeter wave frequency using the first antenna and that is configured to receive the transmitted over-the-air antenna signal from the first antenna using the second antenna; control circuitry configured to perform wireless test measurements using the antenna signal received using the second antenna; a switching circuit coupled between the first and second antenna signal paths; and a coupler interposed on the first antenna signal path and coupled to the second antenna signal path through the switching circuit. - View Dependent Claims (2, 3, 4, 5, 6)
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7. Apparatus, comprising:
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a first antenna in a first antenna signal path; a second antenna in a second antenna signal path; wireless circuitry that is configured to transmit an over-the-air antenna signal at a millimeter wave frequency using the first antenna and that is configured to receive the transmitted over-the-air antenna signal from the first antenna using the second antenna; control circuitry configured to perform wireless test measurements using the antenna signal received using the second antenna; a switching circuit coupled between the first and second antenna signal paths; a first phased antenna array that comprises the first antenna; and a second phased antenna array that comprises the second antenna.
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8. Apparatus, comprising:
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a first antenna in a first antenna signal path; a second antenna in a second antenna signal path; wireless circuitry that is configured to transmit an over-the-air antenna signal at a millimeter wave frequency using the first antenna and that is configured to receive the transmitted over-the-air antenna signal from the first antenna using the second antenna; control circuitry configured to perform wireless test measurements using the antenna signal received using the second antenna; and a switching circuit coupled between the first and second antenna signal paths, wherein the wireless circuitry comprises; baseband processor circuitry, and transceiver circuitry interposed between the baseband processor circuitry and the first and second antennas.
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9. Apparatus, comprising:
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a first antenna in a first antenna signal path; a second antenna in a second antenna signal path; wireless circuitry that is configured to transmit an over-the-air antenna signal at a millimeter wave frequency using the first antenna and that is configured to receive the transmitted over-the-air antenna signal from the first antenna using the second antenna; control circuitry configured to perform wireless test measurements using the antenna signal received using the second antenna; and a switching circuit coupled between the first and second antenna signal paths, wherein the wireless circuitry comprises; baseband processor circuitry, a first transceiver in the first antenna signal path and interposed between the baseband processor circuitry and the first antenna, and a second transceiver in the second antenna signal path and interposed between the baseband processor circuitry and the second antenna. - View Dependent Claims (10, 11)
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12. Apparatus, comprising:
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control circuitry; a first antenna in a first antenna signal path; a second antenna in a second antenna signal path; wireless circuitry that includes transceiver circuitry configured to operate under control of the control circuitry to transmit and receive antenna signals over the first and second antenna signal paths using the first and second antennas, wherein the control circuitry is configured to control the wireless circuitry to transmit over-the-air antenna signals using the first antenna while measuring corresponding received antenna signals from the first antenna using the second antenna, and the control circuitry is further configured to gather impedance measurements using at least the corresponding received antenna signals; and a coupler interposed in the second antenna signal path, wherein the control circuitry is configured to gather the impedance measurements using at least the coupler. - View Dependent Claims (13, 14, 15, 16)
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17. An integrated antenna and transceiver module that is controlled by control circuitry to transmit and receive antenna signals, comprising:
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a first antenna in a first antenna signal path; an adjustable electrical component in the first antenna signal path; a second antenna in a second antenna signal path; and transceiver circuitry that is configured to transmit an over-the-air antenna test signal using the first antenna and that is configured to receive the over-the-air antenna test signal transmitted by the first antenna using the second antenna, wherein the adjustable electrical component is configured to be adjusted by the control circuitry while the second antenna receives the over-the-air antenna test signal, and the adjustable electrical component is calibrated using calibration data generated by the control circuitry in response to the over-the-air antenna test signal received using the second antenna. - View Dependent Claims (18, 19, 20)
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Specification