Phase amplitude controller

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.

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.