Electronic Device with Tunable and Fixed Antennas
First Claim
1. An electronic device, comprising:
- radio-frequency transceiver circuitry having a first port with a transmitter and a receiver that are configured to transmit and receive radio-frequency signals and a second port with a receiver that is configured to receive radio-frequency signals;
a switchless antenna coupled to the first port and configured to transmit and receive radio frequency signals; and
a switch-based tunable antenna coupled to the second port and configured to receive radio-frequency antenna signals.
2 Assignments
0 Petitions
Accused Products
Abstract
Electronic devices may be provided that contain wireless communications circuitry. The wireless communications circuitry may include radio-frequency transceiver circuitry and antennas. The antennas may include a non-tunable antenna and a tunable antenna. The non-tunable antenna may serve as the primary antenna in the electronic device and the tunable antenna may serve as a secondary antenna in the electronic device. The non-tunable antenna may be configured to operate in at least one communications band. The tunable antenna may contain adjustable circuitry. The adjustable circuitry may be used to tune the tunable antenna to cover the same communications band used by the non-tunable antenna. The tunable antenna may have a resonating element and an antenna ground. The adjustable circuit may be coupled between the resonating element and the antenna ground. The adjustable circuit may include electrical components such as inductors and capacitors and a radio-frequency switch for antenna tuning.
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Citations
22 Claims
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1. An electronic device, comprising:
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radio-frequency transceiver circuitry having a first port with a transmitter and a receiver that are configured to transmit and receive radio-frequency signals and a second port with a receiver that is configured to receive radio-frequency signals; a switchless antenna coupled to the first port and configured to transmit and receive radio frequency signals; and a switch-based tunable antenna coupled to the second port and configured to receive radio-frequency antenna signals. - View Dependent Claims (3, 4, 5, 6, 7, 8, 9, 10, 11)
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2. The electronic device defined in claim wherein the switchless antenna is larger than the switch-based tunable antenna and wherein the switchless antenna and the switch-based antenna are configured to cover at least one common communications band.
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12. An electronic device, comprising:
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radio-frequency transceiver circuitry configured to transmit and receive radio-frequency signals; a non-tunable antenna coupled to the radio-frequency transceiver circuitry that is configured to transmit and receive the radio-frequency signals; and a tunable antenna coupled to the radio-frequency transceiver circuitry that is configured exclusively for receiving the radio-frequency signals and not transmitting the radio-frequency signals. - View Dependent Claims (13, 14, 15, 16, 17, 18)
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19. A electronic device, comprising:
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a conductive housing; a dielectric antenna window in the conductive housing; a switchless antenna that is configured to transmit and receive radio-frequency signals through the dielectric antenna window in at least a given communications band; and a tunable antenna that is configured to receive radio-frequency signals through the dielectric antenna window, wherein the tunable antenna includes an adjustable circuit and wherein the adjustable circuit is operable to tune the tunable antenna to cover the given communications band. - View Dependent Claims (20, 21, 22)
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Specification