Compact, lumped-element six-port receiver with 25% bandwidth

This paper presents the design and implementation of a compact wideband, lumped six-port receiver. The proposed six-port receiver operates at 2.4 GHz with a bandwidth of 600 MHz. The novel combination of the proposed architecture together with the lumped element implementation enables a wideband design with an EVM of 4.2%. It occupies significantly less area compared to a conventional hybrid implementation at these frequencies making it more suitable for integration. The design is demonstrated on a PCB and its capabilities are verified by demodulating 16-QAM signal across the 2.1 - 2.7 GHz band.