An Extremely Broadband Software Configurable Six-Port Receiver Platform

Ultra-wideband six-port transmitter and receiver pair 3.1–4.8 GHz

“…Here, we are utilizing an analog circuit for decoding. There are several previous publications of six-port receivers showing wide operating bandwidth utilizing calibration methods [7][8]. This paper however presents a sixport transmitter and receiver pair without any calibration but with good modulation and demodulation results in the frequency range 3.1 -4.8 GHz, i.e., a relative bandwidth of 43%.…”

Effort-Reduced Calibration of Six-Port Based Receivers for CR/SDR Applications

“…Wide available bandwidth of a typical SPR is ideal for cognitive radio/software defined radio applications where multi-band and multi-mode receiver functionalities are implemented in the digital signal processing (DSP) block of the receiver system. Conventional homodyne architecture of a communication receiver poses several design challenges for wide frequency bandwidth coverage, such as, increase in circuit complexity, fading of realizable amplification, and increase in power consumption [2]- [5]. These problems are greatly simplified in a SPR system as it involves only passive microwave components in the design of RF front-end of the receiver system.…”

“…It can be manufactured very cost effectively and consumes very less power. It also offers very low circuit complexity, poses no intermodulation problems as the radio-frequency (RF) front-end is highly linear, and can handle very low to very high power signals in the demodulation process because of passive circuit involvement [2]- [5]. Wide available bandwidth of a typical SPR is ideal for cognitive radio/software defined radio applications where multi-band and multi-mode receiver functionalities are implemented in the digital signal processing (DSP) block of the receiver system.…”

A novel TDD mode direct conversion digital transceiver using six-port technology

“…The studies of six-port receiver can be classified into the baseband calibration with DSP [3][4], baseband decoder with analog circuit [5][6][7], and carrier recovery [8]. Also, the six-port transmitter, which is also called by modified vector modulator, was studied [9] and UWB communication using six-port transmitter and receiver is proved its possibility [10].…”