Theory and Practice of Modern Antenna Range Measurements

Parini,; Gregson,; McCormick,; Rensburg, Janse van

doi:10.1049/pbew055e

Cited by 160 publications

(119 citation statements)

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“…It can be applied to various measurement surfaces depending on the used basis functions, e.g. spherical [3], cylindrical [4]- [6], and planar [7] near field measurements as well as far field [8], [9] measurements. The algorithm was used for an antenna fed with a wafer probe in [10], using the 60 GHz patch antenna presented in [11] as AUT.…”

Section: Introductionmentioning

confidence: 99%

“…The radiated electrical field can be split in a transverse electric (TE) and a transverse magnetic (TM) component [8] …”

Section: Introductionmentioning

confidence: 99%

“…The complex weighting factors B (1) mn and B (2) mn are called spherical mode coefficients (SMC) [8]. The factor k/ √ η, with η = ε/µ, ensures that B (1) mn and B (2) mn have the unit W 1/2 .…”

Section: Introductionmentioning

confidence: 99%

“…After the calculation of m (4) mn and n (4) mn with (8) and splitting E(r) in an E φ and E θ component, (11) can be solved for B (1) mn and B (2) mn as shown in [18]. The SMCs can then be calculated with…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Reflection Reduction Through Modal Filtering for Integrated Antenna Measurements Above 100 GHz

Boehm

Foerstner

Hitzler

et al. 2017

IEEE Trans. Antennas Propagat.

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Abstract-Feeding integrated antennas during a measurement requires special feeding structures. Due to the small antenna dimensions these feeding structures are often much bigger than the antenna under test (AUT) itself and with chip sizes of around 1 mm 2 , the achievable separation between antenna and feed is limited. Wafer probes have to be used to feed the AUT during passive antenna measurements and present a large reflective surface in close proximity to the AUT. Reflections from the wafer probe cause interference on the measurement surface and distort the results. The same is true for active antenna measurements, where bondwires and the package can have a significant effect on the radiated fields. The fragility and size of the components do not allow to reduce reflections with absorbers, which is why modal filtering was used in this paper to mitigate undesired reflections and improve the measurement result through post processing. Two issues that limit the performance of the algorithm are discussed, namely phase center inaccuracies of the AUT and a limited measurement surface.It is shown that modal filtering is applicable to integrated antenna measurements at frequencies over 100 GHz and that a significant improvement in the measured radiation pattern can be achieved. Furthermore, it is shown that the post processed results make it possible to measure the directivity of integrated antennas, despite strong probe reflections.

show abstract

Section: Introductionmentioning

confidence: 99%

“…The radiated electrical field can be split in a transverse electric (TE) and a transverse magnetic (TM) component [8] …”

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Reflection Reduction Through Modal Filtering for Integrated Antenna Measurements Above 100 GHz

Boehm

Foerstner

Hitzler

et al. 2017

IEEE Trans. Antennas Propagat.

View full text Add to dashboard Cite

show abstract

“…A typical hardware and software configuration of the above mentioned measurement systems can be applied to determine the radiation pattern of most antennas that are commonly used in radio communication systems (DVB-T, GSM, UMTS, LTE, WiFi and others) [15]. It can also be adapted to new antenna constructions [16] as well as to new implementations of common antennas in wireless communications [17].…”

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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Mutual Coupling Between Co‐Sited Antennas and Antennas on Large Structures

McNamara

Almajali

2021

Mutual Coupling Between Antennas

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Theory and Practice of Modern Antenna Range Measurements

Cited by 160 publications

References 0 publications

Reflection Reduction Through Modal Filtering for Integrated Antenna Measurements Above 100 GHz

Reflection Reduction Through Modal Filtering for Integrated Antenna Measurements Above 100 GHz

A Method for Measuring the Radiation Pattern of UHF RFID Transponders

Mutual Coupling Between Co‐Sited Antennas and Antennas on Large Structures

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