The six-port as a communications receiver

Hentschel, Tim

doi:10.1109/tmtt.2005.843507

Cited by 90 publications

(53 citation statements)

References 14 publications

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“…It is composed of a linear and passive six-port junction, and four power detectors, as shown in Figure 1(c). The principle of operation of the six-port receiver is based on the measurement of four independent powers, when the LO and RF signals are introduced into the remaining two ports [11]. The original I-Q components can be regenerated from these four power observations and some calibration constants, depending on system response.…”

Section: Overview Of Rf Architectures For Sdrmentioning

confidence: 99%

See 1 more Smart Citation

Experimental Performance Comparison of Six-Port and Conventional Zero-if/Low-if Receivers for Software Defined Radio

Morena¹,

Burgos-García²

2012

PIER B

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Abstract-This paper presents an experimental performance comparison among three RF architectures that are very suitable for Software Defined Radio (SDR) implementation: zero-IF, low-IF, and six-port network. A six-port receiver and a dual zero-IF/low-IF receiver have been developed for this purpose. Six-port receiver is a very promising and flexible RF architecture for the low-cost implementation of integrated microwave and millimeter-wave systems. Competitive advantages such as ultra-broadband behavior, low-cost, reconfigurability, and low power consumption, point to the six-port architecture as a good candidate to implement a SDR. However, two issues on broadband six-port receivers require intensive research: dynamic range extension, and miniaturization. In this paper, two solutions are proposed to solve these problems: the use of biased detector diodes for dynamic range extension, and the use of low temperature co-fired ceramic (LTCC) technology for six-port reduction. The measurement results indicate that the six-port receiver shows high potential benefits and advantages compared to conventional zero-IF and low-IF receivers. In addition, the capability of the six-port architecture to operate as both zero-IF and low-IF receivers has been experimentally demonstrated for the first time.

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Section: Overview Of Rf Architectures For Sdrmentioning

confidence: 99%

“…Nevertheless, the operation principle of six-port networks as both homodyne and heterodyne receivers was analytically demonstrated in [11]. In spite of it, almost all previous reported six-port receivers have been homodyne ones.…”

Section: Six-port Operation As Dual Zero-if/low-if Receivermentioning

confidence: 99%

Experimental Performance Comparison of Six-Port and Conventional Zero-if/Low-if Receivers for Software Defined Radio

Morena¹,

Burgos-García²

2012

PIER B

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“…The principle of operation of the six-port receiver is based on the measurement of four independent powers, when the local oscillator (LO) and RF signals are introduced into the remaining two ports [11]. A six-port receiver consists of a linear and passive six-port network and four power detectors, as it is shown in Figure 1.…”

Section: Fundamentals Of the Six-port Receivermentioning

confidence: 99%

“…This well-known six-port topology also allows of analog I-Q regeneration, although with some limitations [11]. On one hand, a perfect cancellation of the rectified wave component is required.…”

Section: Description Of the Six-port Receivermentioning

confidence: 99%

Four-Octave Six-Port Receiver and Its Calibration for Broadband Communications and Software Defined Radios

Morena¹,

Burgos-García²

2011

PIER

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Abstract-This paper presents a software defined radio six-port receiver for a novel broadband mobile communications system. The prototype covers the frequency range from 0.3 GHz to 6 GHz, and operates with up to 100 MHz-wide channels. The multi-band and multi-mode demodulation capabilities of the six-port architecture have been experimentally demonstrated. The six-port receiver has been satisfactorily proved for high data rates (up to 93.75 Mb/s, limited by the available test instruments). An efficient six-port autocalibration method suitable for large instantaneous bandwidth systems is presented and validated.

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“…In [9] the six-port receiver is theoretically described and compared with the homodyne and heterodyne reception architectures. In [10] the analysis is focused on the relationship between the LO power level and system level parameters of the receiver with an ideal six-port network.…”

Section: Introductionmentioning

confidence: 99%

Signal Constellation Distortion and Ber Degradation Due to Hardware Impairments in Six-Port Receivers With Analog I/Q Generation

Moscoso-Mártir¹,

Molina-Fernández²,

Ortega-Moñux³

2011

PIER

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Abstract-Since its introduction in 1994 direct conversion sixport receivers have attracted a considerable attention at microwave frequencies, with most recent work focusing on the so called sixport receivers with analog I/Q generation. Besides its applications at microwave frequencies, six-port receivers with I/Q regeneration play a crucial role in the optical communications field, as they are the most promising candidates for optical coherent receivers that are being developed for 100 Gigabit Ethernet transceivers. In this paper we analytically model the influence of six-port junction hardware impairments on receiver performance. New analytical expressions are developed which give geometrical interpretation of signal constellation distortion due to hardware impairments and allow for the definition of several interesting figures of merit. Closed formulas are also proposed to analytically calculate BER degradation, under AWGN conditions, from these figures of merit. Finally, the proposed formulas are validated by means of simulation, and it is shown that they can be of practical interest to set the specifications of the six-port junction components.

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The six-port as a communications receiver

Cited by 90 publications

References 14 publications

Experimental Performance Comparison of Six-Port and Conventional Zero-if/Low-if Receivers for Software Defined Radio

Experimental Performance Comparison of Six-Port and Conventional Zero-if/Low-if Receivers for Software Defined Radio

Four-Octave Six-Port Receiver and Its Calibration for Broadband Communications and Software Defined Radios

Signal Constellation Distortion and Ber Degradation Due to Hardware Impairments in Six-Port Receivers With Analog I/Q Generation

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