# US 2025/0158596 A1 · Phase amplitude controller > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2025/0158596 A1 - Document ID: US20250158596A1 - Status: Published application - Kind: A1 - Application number: 18/904,321 - Filed: 2024-10-02 - Published: 2025-05-15 - Earliest claimed: 2023-11-10 - Applicants: Qorvo US, Inc. - Inventors: Joel Johnson; Nikolaus Klemmer - Web page: https://patentgrep.com/patent/US20250158596A1 ## CPC - H03H 11/16: Networks for phase shifting - H04B 7/0617: {for beam forming} - H04W 16/28: using beam steering - H04W 88/08: Access point devices - H03H: IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS (waveguides, resonators, lines or other devices of the waveguide type H01P) - H04B: TRANSMISSION - H04W: WIRELESS COMMUNICATION NETWORKS (broadcast communication H04H; communication systems using wireless links for non-selective communication, e.g. wireless extensions H04M1/72) ## Abstract Phase amplitude controllers are disclosed. In one aspect, a phase amplitude controller may be formed by splitting a signal into two paths. Each path uses an independently controlled phase adjusting circuit to adjust a phase of the signal on that path. The signals are then recombined. By selecting an appropriate total phase adjustment and a relative phase adjustment, not just the phase but also the amplitude of the resulting combined signal may be controlled. In this fashion, a phase amplitude controller may be formed with fewer parts, thereby taking up less space, weighing less, and being more amenable to use in a retrofit antenna array. Additionally, the reduction in parts may lower the cost, meaning that antenna arrays with many duplicated phase amplitude controllers may be cheaper. ## Claims ### Claim 1 A transceiver comprising: a phase amplitude controller (PAC) comprising: a power splitter configured to provide two signals; a first variable phase shifter coupled to the power splitter and configured to phase shift a first signal of the two signals, wherein the first variable phase shifter is configured to provide a selected phase shift between zero and one hundred eighty degrees; a second variable phase shifter coupled to the power splitter and configured to phase shift a second signal of the two signals; and a power combiner coupled to the first variable phase shifter and the second variable phase shifter and configured to combine even modes of the first signal and the second signal while discarding odd modes of the first signal and the second signal such that phase and amplitude are adjusted based on phase shifts provided by the first variable phase shifter and the second variable phase shifter. ### Claim 2 (depends on 1) The transceiver of claim 1, wherein the first variable phase shifter comprises a six-bit phase shifter, wherein bits of the six-bit phase shifter indicate the selected phase shift. ### Claim 3 (depends on 1) The transceiver of claim 1, wherein the first variable phase shifter comprises an eight-bit phase shifter, wherein bits of the eight-bit phase shifter indicate the selected phase shift. ### Claim 4 (depends on 1) The transceiver of claim 1, wherein the first variable phase shifter comprises a switched line circuit. ### Claim 5 (depends on 1) The transceiver of claim 1, wherein the first variable phase shifter comprises a bridge T-type circuit. ### Claim 6 (depends on 1) The transceiver of claim 1, wherein the first variable phase shifter comprises a switched high pass low pass circuit. ### Claim 7 (depends on 1) The transceiver of claim 1, wherein the PAC does not include an attenuator. ### Claim 8 (depends on 1) The transceiver of claim 1, wherein the PAC further comprises a first adjustable attenuator serially positioned between the power splitter and the first variable phase shifter. ### Claim 9 (depends on 8) The transceiver of claim 8, wherein the PAC further comprises a second adjustable attenuator serially positioned between the power splitter and the second variable phase shifter. ### Claim 10 (depends on 8) The transceiver of claim 8, wherein the first adjustable attenuator has no more than three bits of adjustment available. ### Claim 11 (depends on 1) The transceiver of claim 1, wherein the power splitter comprises a Wilkinson power splitter. ### Claim 12 (depends on 1) The transceiver of claim 1, wherein the power combiner comprises a Wilkinson power combiner. ### Claim 13 An antenna panel configured to be coupled to a tower to provide wireless communication service to user equipment, the antenna panel comprising: a housing; a plurality of antenna elements on a front face of the housing; and a corresponding plurality of transceivers for respective ones of the plurality of antenna elements, wherein each of the corresponding plurality of transceivers comprises: a phase amplitude controller (PAC) comprising: a power splitter configured to provide two signals; a first variable phase shifter coupled to the power splitter and configured to phase shift a first signal of the two signals by a selected phase shift; a second variable phase shifter coupled to the power splitter and configured to phase shift a second signal of the two signals; and a power combiner coupled to the first variable phase shifter and the second variable phase shifter and configured to combine even modes of the first signal and the second signal while discarding odd modes of the first signal and the second signal such that phase and amplitude are adjusted based on phase shifts provided by the first variable phase shifter and the second variable phase shifter. ### Claim 14 (depends on 13) The antenna panel of claim 13, wherein respective phase and amplitudes of signals passing through the PACs may be adjusted for beam forming by the antenna panel. ### Claim 15 (depends on 13) The antenna panel of claim 13, wherein the first variable phase shifter comprises a six-bit phase shifter, wherein bits of the six-bit phase shifter indicate the selected phase shift. ### Claim 16 (depends on 13) The antenna panel of claim 13, wherein the PAC further comprises a first adjustable attenuator serially positioned between the power splitter and the first variable phase shifter. ### Claim 17 (depends on 16) The antenna panel of claim 16, wherein the PAC further comprises a second adjustable attenuator serially positioned between the power splitter and the second variable phase shifter. ### Claim 18 (depends on 13) The antenna panel of claim 13, further comprising a look-up table configured to provide settings for elements of the PAC. ### Claim 19 A method of adjusting phase and amplitude of a signal, comprising: splitting a signal using a power splitter into a first signal and a second signal; using a first variable phase shifter to adjust a first phase of the first signal; using a second variable phase shifter to adjust a second phase of the second signal; and combining the first signal and the second signal with a power combiner such that even modes of the first signal and the second signal are constructively summed while discarding odd modes of the first signal and the second signal such that phase and amplitude are adjusted based on phase shifts provided by the first variable phase shifter and the second variable phase shifter. ### Claim 20 (depends on 19) The method of claim 19, further comprising attenuating the first signal before adjusting the first phase.