Reconfigurable, bi-directional, multi-band front end for a hybrid beamforming transceiver
AssigneeCarnegie Mellon University
InventorsJeyanandh Paramesh, Susnata Mondal
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Abstract
Designs and techniques to enhance power-efficiency and incorporate new features in millimeter-wave MIMO transceivers are described. A new mechanism for built-in dual-band, per-element self-interference cancellation (SIC) is introduced to enable multi-antenna frequency-division duplex (FDD) and full-duplex (FD) operation. Additionally, several innovative circuit concepts are introduced, including low-loss wideband antenna interface design, dual-band power combining PA, dual-band RF-SIC design, and bi-directional MIMO signal
Claims1
A bi-directional, transmit/receive module suitable for use as a front-end interface between radio electronics and an antenna array in a beamforming transceiver, comprising:
- an amplification module coupled to the antenna array;
- a splitter/combiner module coupled to the amplification module transmit;
- and
- a bi-directional complex-valued weighting module, coupled to the splitter/combined module;
- wherein the transmit/receive module can be configured to operate in one of three modes;
- a first mode wherein the transmit/receive module operates as a fully-connected hybrid beamforming transmitter;
- a second mode wherein the transmit/receive module operates as a fully-connected hybrid beamforming receiver;
- and
- a third mode wherein the transmit/receive module operates as full duplex or frequency-division duplex hybrid beamforming transceiver.
Dependencies are inferred from the claim text.