Compact antenna test range without reflector edge treatment and RF anechoic chamber

Chang, Dau‐Chyrh; Liao, Chao‐Hsiang; Wu, Chao‐Hsiung

doi:10.1109/map.2004.1373997

Cited by 18 publications

(7 citation statements)

References 14 publications

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“…A direct-broadcast satellite reflector antenna, without an edge treatment, has been utilized to generate the quiet zone (Chang et al 2004). The fields due to the edge diffractions, feed spill over and other stray signals can be gated out by the impulse time-domain antenna measurement system in order to enhance the performance of the quiet zone.…”

Section: Compact Antenna Test Range Methodmentioning

confidence: 99%

“…On the other hand, FSM is a non-destructive method, which can be categorized as single-port FSM, dual-port FSM, and arc type FSM. The compact range, far field, near field and Gaussian beam based test methods are some other widely used microwave measurement techniques for the performance evaluation of R&S structures (Chang et al 2004, Chen et al 2004, Kerouedan et al 2008. A series of other conventional electromagnetic techniques for R&S structures are available in the literature (Chen et al 2004, Li et al 2011b, Cheng et al 2012.…”

Section: Introductionmentioning

confidence: 99%

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Performance and non-destructive evaluation methods of airborne radome and stealth structures

Panwar

Lee

2018

Meas. Sci. Technol.

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In the past few years, great effort has been devoted to the fabrication of highly efficient, broadband radome and stealth (R&S) structures for distinct control, guidance, surveillance and communication applications for airborne platforms. The evaluation of non-planar aircraft R&S structures in terms of their electromagnetic performance and structural damage is still a very challenging task. In this article, distinct measurement techniques are discussed for the electromagnetic performance and non-destructive evaluation (NDE) of R&S structures. This paper deals with an overview of the transmission line method and free space measurement based microwave measurement techniques for the electromagnetic performance evaluation of R&S structures. In addition, various conventional as well as advanced methods, such as millimetre and terahertz wave based imaging techniques with great potential for NDE of load bearing R&S structures, are also discussed in detail. A glimpse of in situ NDE techniques with corresponding experimental setup for R&S structures is also presented. The basic concepts, measurement ranges and their instrumentation, measurement method of different R&S structures and some miscellaneous topics are discussed in detail. Some of the challenges and issues pertaining to the measurement of curved R&S structures are also presented. This study also lists various mathematical models and analytical techniques for the electromagnetic performance evaluation and NDE of R&S structures. The research directions described in this study may be of interest to the scientific community in the aerospace sectors.

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Section: Compact Antenna Test Range Methodmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Performance and non-destructive evaluation methods of airborne radome and stealth structures

Panwar

Lee

2018

Meas. Sci. Technol.

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“…[22]. Reported studies [23,24] revealed that CATR could reduce the electromagnetic wave propagation distance and compensate for the free space path loss. In ref.…”

Section: Introductionmentioning

confidence: 99%

A novel metasurface lens antenna design for over‐the‐air testing in millimetre wave radio resource management measurement

Zhang

Wang

Xue

et al. 2023

IET Microwaves Antenna & Prop

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In millimetre wave (mmWave) frequency band, radio resource management (RRM) performance is characterised in plane wave conditions using radiated over‐the‐air test method, which is a challenging combination of protocol and radio frequency performance measurement. This article presents a novel design of multiple lens‐based compact antenna test ranges (CATRs) to simulate multiple angles of arrival from different base‐stations in RRM measurement. Only four lens‐based CATRs are proposed to create plane wave conditions at the device under test with six different angles of arrival and capable of accurately constructing the wireless propagation condition and minimising the diffraction and scattering between adjacent CATRs. The lens‐based CATR is the key element in the RRM measurement system, which is composed of a metasurface lens for phase alignment and a 2 × 2 feed array antenna for the emission of electromagnetic signals. The function and capability of the proposed lens‐based CATR is validated through simulation and measurement, that the worst‐case amplitude variation in the quiet zone region is lower than ±0.8 dB at 26 GHz, and phase variation is lower than ±7.5° in the designed quiet zone, which could be used in the fifth‐generation mmWave RRM measurement.

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“…In any type of chamber, the measuring area has to be adjusted to geometrical dimensions of antennas and their operating frequencies. If there is not enough space in order to establish a far-field during tests, then compact products (anechoic chambers with parabolic reflectors) are used as a substitute [3,4,11]. Dedicated polygon stands with the possibility of suppressing unwanted electromagnetic wave reflections can also be applied [4,12,13] to the considered tasks.…”

Section: Introductionmentioning

confidence: 99%

A Method for Measuring the Radiation Pattern of UHF RFID Transponders

Jankowski-Mihułowicz

Węglarski²

2016

Metrology and Measurement Systems

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The operating principles of RFID antennas should be considered differently than it is applied in the classical theory of radio communication systems. The procedure of measuring the radiation pattern of antennas that could be applied to RFID transponders operating in the UHF band is seldom discussed correctly in the scientific literature. The problem consists in the variability of the RFID chip impedance that strongly influences measurement results. The authors propose the proper methodology for determining the radiation pattern with respect to an individual transponder as well as an electronically tagged object. The advantage of the solution consists in the possibility of using components of different measuring systems that are available in typical antenna laboratories. The proposed procedure is particularly important in terms of parameter validation -the identification efficiency and costs of an RFID system implementation can be evaluated properly only on the basis of real values of considered parameters.

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Compact antenna test range without reflector edge treatment and RF anechoic chamber

Cited by 18 publications

References 14 publications

Performance and non-destructive evaluation methods of airborne radome and stealth structures

Performance and non-destructive evaluation methods of airborne radome and stealth structures

A novel metasurface lens antenna design for over‐the‐air testing in millimetre wave radio resource management measurement

A Method for Measuring the Radiation Pattern of UHF RFID Transponders

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