ELECTRONIC DEVICE WITH SHARED MULTIBAND ANTENNA AND ANTENNA DIVERSITY CIRCUITRY
First Claim
1. Wireless communications circuitry comprising:
- a 5 GHz radio-frequency transceiver that operates in a 5 GHz communications band and a 2.4 GHz radio-frequency transceiver that operates in a 2.4 GHz band;
an antenna structure; and
circuitry that couples both the 5 GHz radio-frequency transceiver and the 2.4 GHz radio-frequency transceiver to the antenna structure and that routes transmitted 5 GHz signals from the 5 GHz radio-frequency transceiver to the antenna structure while simultaneously passing 2.4 GHz signals from the antenna structure to the 2.4 GHz radio-frequency transceiver.
1 Assignment
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Accused Products
Abstract
Electronic devices are provided that contain wireless communications circuitry. The wireless communications circuitry may have antenna diversity circuitry that allows an optimum antenna in an antenna structure to be switched into use during device operations. The antenna structure may be shared between multiple radio-frequency transceivers in a radio-frequency transceiver circuit. The radio-frequency transceiver circuit may be coupled to the antenna structure using switching and filtering circuitry. The filtering circuitry may include a diplexer that divides radio-frequency signals into a divided signal path based on frequency. The filtering circuitry may also include bandpass filters that are interposed in each branch of the divided signal path. Switching circuitry in the switching and filtering circuitry may be used to selectively configure the wireless communications circuitry in transmit and receive modes using multiple communications bands.
49 Citations
25 Claims
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1. Wireless communications circuitry comprising:
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a 5 GHz radio-frequency transceiver that operates in a 5 GHz communications band and a 2.4 GHz radio-frequency transceiver that operates in a 2.4 GHz band; an antenna structure; and circuitry that couples both the 5 GHz radio-frequency transceiver and the 2.4 GHz radio-frequency transceiver to the antenna structure and that routes transmitted 5 GHz signals from the 5 GHz radio-frequency transceiver to the antenna structure while simultaneously passing 2.4 GHz signals from the antenna structure to the 2.4 GHz radio-frequency transceiver. - View Dependent Claims (2, 4, 5, 6)
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7. An electronic device comprising:
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a housing; transceiver circuitry in the housing that handles wireless local area network radio-frequency signals at 5 GHz and radio-frequency signals at 2.4 GHz; an antenna structure in the housing that is used to simultaneously receive 5 GHz radio-frequency signals for the transceiver circuitry and transmit 2.4 GHz radio-frequency signals from the transceiver circuitry; and a cellular telephone transceiver and cellular telephone antenna in the housing. - View Dependent Claims (8, 9, 10, 11, 12, 13)
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14. An electronic device comprising:
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an antenna structure; wireless communications circuitry that transmits and receives radio-frequency signals with the antenna structure, wherein the radio-frequency signals include radio-frequency signals in a first communications band and radio-frequency signals in a second communications band; a diplexer coupled between the antenna structure and the wireless communications circuitry, wherein the diplexer has terminals respectively connected to; a first path that conveys the radio-frequency signals in the first communications band; a second path that conveys the radio-frequency signals in the second communications band; an antenna path coupled to the antenna structure; and bandpass filter circuitry that is coupled between the diplexer and the wireless communications circuitry. - View Dependent Claims (15, 16, 17, 18, 19, 20)
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21. A portable electronic device, comprising:
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an antenna structure having a first antenna and a second antenna; an antenna diversity switch that selectively switches the first and second antennas into use in response to antenna diversity control signals; radio-frequency transceiver circuitry that transmits and receives radio-frequency signals through the antenna diversity switch, wherein the radio-frequency signals include radio-frequency signals in a first communications band and radio-frequency signals in a second communications band; a diplexer coupled between the antenna structure and the radio-frequency transceiver circuitry, wherein the diplexer has terminals respectively connected to; a first path that conveys the radio-frequency signals in the first communications band; a second path that conveys the radio-frequency signals in the second communications band; an antenna path coupled to the antenna diversity switch; and a first bandpass filter that is interposed in the first path between the diplexer and the radio-frequency transceiver circuitry; and a second bandpass filter that is interposed in the second path between the diplexer and the radio-frequency transceiver circuitry. - View Dependent Claims (22, 25)
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- 23. The portable electronic device defined in claim 23 wherein the second bandpass filter comprises a 5 GHz bandpass filter.
Specification