# US 12,184,311 B2 · Antenna systems with both single-ended and differential signal feeds > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,184,311 B2 - Document ID: US12184311B2 - Status: Granted - Kind: B2 - Application number: 17/655,863 - Filed: 2022-03-22 - Published: 2022-09-29 - Granted: 2024-12-31 - Earliest claimed: 2021-03-25 - Assignees: Skyworks Solutions, Inc. - Applicants: Skyworks Solutions, Inc. - Inventors: Dominique Michel Yves Brunel - Web page: https://patentgrep.com/patent/US12184311B2 ## CPC - H04B 1/0053: {with common antenna for more than one band} - H01Q 1/246: {specially adapted for base stations} - H01Q 3/22: varying the orientation in accordance with variation of frequency of radiated wave - H01Q 5/35: using two or more simultaneously fed points - H01Q 1/241: {used in mobile communications, e.g. GSM (H01Q1/247, H01Q1/248 take precedence)} - H01Q 3/26: varying the relative phase or relative amplitude of energisation between two or more active radiating elements; varying the distribution of energy across a radiating aperture ({H01Q3/12,} H01Q3/22, H01Q3/24 take precedence) - H01Q 21/065: {Patch antenna array} - H04B: TRANSMISSION - H01Q: ANTENNAS, i.e. RADIO AERIALS (radiators or antennas for microwave heating H05B6/72) ## Abstract Antenna systems with both single-ended and differential signal feeds are provided herein. In certain embodiments, a mobile device includes a front end system including a first radio frequency signal conditioning circuit configured to condition a first radio frequency signal that is single-ended and of a first frequency, and a second radio frequency signal conditioning circuit configured to condition a second radio frequency signal that is differential and of a second frequency. The mobile device further includes an antenna including a first signal feed connected to the first radio frequency signal conditioning circuit and a pair of second signal feeds connected to the second radio frequency signal conditioning circuit. ## Claims ### Claim 1 A mobile device comprising: a front end system that includes a first plurality of signal conditioning circuits including a first radio frequency signal conditioning circuit configured to condition a first radio frequency signal that is single-ended and of a first frequency, and a second plurality of signal conditioning circuits including a second radio frequency signal conditioning circuit configured to condition a second radio frequency signal that is differential and of a second frequency, the first plurality of signal conditioning circuits configured to provide beamforming on the first frequency and the second plurality of signal conditioning circuits configured to provide beamforming on the second frequency; and an antenna array that includes an antenna including a first signal feed connected to the first radio frequency signal conditioning circuit and a pair of second signal feeds connected to the second radio frequency signal conditioning circuit. ### Claim 2 (depends on 1) The mobile device of claim 1 wherein the first frequency is harmonically related to the second frequency. ### Claim 3 (depends on 2) The mobile device of claim 2 wherein the first frequency and the second frequency are related by an even harmonic. ### Claim 4 (depends on 1) The mobile device of claim 1 wherein the antenna includes a patch antenna element including both the first signal feed and the pair of second signal feeds. ### Claim 5 (depends on 1) The mobile device of claim 1 wherein the antenna includes a first patch antenna element including the first signal feed and a second patch antenna element coupled to the first patch antenna element and including the pair of second signal feeds. ### Claim 6 (depends on 1) The mobile device of claim 1 wherein the first signal conditioning circuit includes a low noise amplifier configured to receive the first radio frequency signal from the first signal feed of the antenna, and the second signal conditioning circuit includes a power amplifier configured to provide the second radio frequency signal to the pair of second signal feeds of the antenna. ### Claim 7 (depends on 1) The mobile device of claim 1 wherein the first signal conditioning circuit includes a power amplifier configured to provide the first radio frequency signal to the first signal feed of the antenna, and the second signal conditioning circuit includes a low noise amplifier configured to receive the second radio frequency signal from the pair of second signal feeds of the antenna. ### Claim 8 (depends on 1) The mobile device of claim 1 wherein the front end system further includes a first controllable gain and phase adjustment circuit configured to control a gain and a phase of the first radio frequency signal, and a second controllable gain and phase adjustment circuit configured to control a gain and a phase of the second radio frequency signal. ### Claim 9 An antenna system for a mobile device, the antenna system comprising: a first plurality of signal conditioning circuits including a first radio frequency signal conditioning circuit configured to condition a first radio frequency signal that is single-ended and of a first frequency, the first plurality of signal conditioning circuits configured to provide beamforming on the first frequency; a second plurality of signal conditioning circuits including a second radio frequency signal conditioning circuit configured to condition a second radio frequency signal that is differential and of a second frequency, the second plurality of signal conditioning circuits configured to provide beamforming on the second frequency; and an antenna array that includes an antenna including a first signal feed connected to the first radio frequency signal conditioning circuit and a pair of second signal feeds connected to the second radio frequency signal conditioning circuit. ### Claim 10 (depends on 9) The antenna system of claim 9 wherein the first frequency is harmonically related to the second frequency. ### Claim 11 (depends on 10) The antenna system of claim 10 wherein the first frequency and the second frequency are related by an even harmonic. ### Claim 12 (depends on 9) The antenna system of claim 9 wherein the antenna includes a patch antenna element including both the first signal feed and the pair of second signal feeds. ### Claim 13 (depends on 9) The antenna system of claim 9 wherein the antenna includes a first patch antenna element including the first signal feed and a second patch antenna element coupled to the first patch antenna element and including the pair of second signal feeds. ### Claim 14 (depends on 9) The antenna system of claim 9 wherein the first signal conditioning circuit includes a low noise amplifier configured to receive the first radio frequency signal from the first signal feed of the antenna, and the second signal conditioning circuit includes a power amplifier configured to provide the second radio frequency signal to the pair of second signal feeds of the antenna. ### Claim 15 (depends on 9) The antenna system of claim 9 wherein the first signal conditioning circuit includes a power amplifier configured to provide the first radio frequency signal to the first signal feed of the antenna, and the second signal conditioning circuit includes a low noise amplifier configured to receive the second radio frequency signal from the pair of second signal feeds of the antenna. ### Claim 16 A method of wireless communication in a mobile device, the method comprising: conditioning a first radio frequency signal that is single-ended and of a first frequency using a first radio frequency signal conditioning circuit of a first plurality of signal conditioning circuits; conditioning a second radio frequency signal that is differential and of a second frequency using a second radio frequency signal conditioning circuit of a second plurality of signal conditioning circuits; providing beamforming on the first frequency using the first plurality of signal conditioning circuits; providing beamforming on the second frequency using the second plurality of signal conditioning circuits; handling the first radio frequency signal using a first signal feed of an antenna of an antenna array; and handling the second radio frequency signal using a pair of second signal feeds of the antenna. ### Claim 17 (depends on 16) The method of claim 16 wherein the first frequency is harmonically related to the second frequency. ### Claim 18 (depends on 16) The method of claim 16 further comprising simultaneously transmitting the first radio frequency signal and receiving the second radio frequency signal. ### Claim 19 (depends on 16) The method of claim 16 further comprising simultaneously receiving the first radio frequency signal and transmitting the second radio frequency signal. ### Claim 20 (depends on 16) The method of claim 16 further comprising controlling a gain and a phase of the first radio frequency signal using a first controllable gain and phase adjustment circuit, and controlling a gain and a phase of the second radio frequency signal using a second controllable gain and phase adjustment circuit.