A wideband millimeter wave six-port reflectometer using four diode detectors calibrated without a power ratio standard

Ghannouchi, Fadhel M.; Bosisio, R.G.

doi:10.1109/19.119791

Cited by 19 publications

(3 citation statements)

References 9 publications

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“…The multi-port (six-port) circuit was introduced in the 1960s, and was used exclusively in the first three decades as a low-cost alternative to expensive vector network analyzers [ 1 , 2 , 3 , 4 , 5 , 6 , 7 , 8 , 9 , 10 , 11 , 12 , 13 , 14 , 15 , 16 , 17 , 18 , 19 , 20 , 21 , 22 , 23 , 24 , 25 , 26 , 27 , 28 , 29 , 30 , 31 , 32 ]. Even with today’s development of electronics, it can play a similar role, especially over millimeter wave frequencies where the price of equipment is prohibitive, or for special applications requiring very low-cost measurement equipment.…”

Section: Multi-port Interferometry History and Basic Operation Primentioning

confidence: 99%

Millimeter Wave Multi-Port Interferometric Radar Sensors: Evolution of Fabrication and Characterization Technologies

Tatu

Moldovan

2020

Sensors

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Recent advances in millimeter wave technologies, both in component and system design, in line with important size and cost reductions, have opened up new applications in ultra-high-speed wireless communications, radar and imaging sensors. The paper presents the evolution of millimeter wave circuit and modules fabrication and characterization technologies in the past decades. Novel planar low-cost fabrication technologies have been successfully developed in this period. In combination with the standard rectangular wave-guide technology, these offer great opportunities for prototyping and testing of future millimeter wave transceivers or front-ends, which integrate antenna arrays, down-converters, modulators, amplifiers, etc., in a compact fixture. The paper uses, as a suggestive example, the evolution of the multi-port interferometric front-ends implementation from millimeter wave bulky components and systems to miniaturized and high-efficient ones. Circuit and system designs are carefully done to avoid (as much as possible) complicated calibration methods or difficult post-processing of baseband data. This requires an increased effort in design and fabrication, but it allows miniaturization, low-power consumption, while keeping very good overall performances. Useful and straightforward laboratory characterization techniques of circuits and systems are described in detail.

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Section: Multi-port Interferometry History and Basic Operation Primentioning

confidence: 99%

Millimeter Wave Multi-Port Interferometric Radar Sensors: Evolution of Fabrication and Characterization Technologies

Tatu

Moldovan

2020

Sensors

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“…Various calibration procedures have been investigated as reported in [26][27][28][29][30][31][32][33][34][35][36][37][38][39][40] such as numbers of terminated loads [26], [29][30][31][32], [34], [37], mean sliding terminations [35], reduction of port termination [27][28], and calibration without power ratio standards [33]. Unfortunately, the problem of the overlapped phase characteristics of the used calibration standards always occurs when the calibration procedure is performed across wideband frequency range for wideband multi-port reflectometer as reported in [22].…”

Section: 10 Introductionmentioning

confidence: 99%

“…Therefore, inaccurate performance will be occurred at those frequencies. From various calibration procedures that investigated in [26][27][28][29][30][31][32][33][34][35][36][37][38][39][40], the use of more calibration standards is expected to be able to minimize the effect of any overlapping phase characteristics of standards.…”

Section: 10 Introductionmentioning

confidence: 99%

An Accurate Operation of Wideband Multi-Port Reflectometer with New Calibration Method implementing Least Mean Square for Microwave Imaging Application

Yob

Seman

2015

Jurnal Teknologi

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The wideband operation of multi-port reflectometer may lead to inaccurate reflection coefficient measurement caused by the overlapped phase characteristics of the used calibration standards. Therefore, a calibration procedure implementing Least Mean Square (LMS) is proposed to offer accurate operation of wideband multi-port reflectometer from 1 to 6 GHz. Its well wideband performance is verified by attenuators of 3, 6 and 10 dB that assessed as the device under tests (DUTs). The proposed LMS contains a learning rate, m and updated weight coefficient, W(k+1) to eliminate error and achieve the corrected reflection coefficient of DUT.

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A homodyne multiport network analyzer forS-parameter measurements of microwaveN-port circuits/systems

Boulejfen

Kouki

Ghannouchi

2000

Microw. Opt. Technol. Lett.

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A wideband millimeter wave six-port reflectometer using four diode detectors calibrated without a power ratio standard

Cited by 19 publications

References 9 publications

Millimeter Wave Multi-Port Interferometric Radar Sensors: Evolution of Fabrication and Characterization Technologies

Millimeter Wave Multi-Port Interferometric Radar Sensors: Evolution of Fabrication and Characterization Technologies

An Accurate Operation of Wideband Multi-Port Reflectometer with New Calibration Method implementing Least Mean Square for Microwave Imaging Application

A homodyne multiport network analyzer forS-parameter measurements of microwaveN-port circuits/systems

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