Chassis Diversity Antenna Comparison

Razmhosseini, Maryam; Bhattacharya, Abhiiit; Vaughan, Rodney G.

doi:10.1109/apusncursinrsm.2018.8608588

Cited by 1 publication

(4 citation statements)

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“…The ECCs presented in Fig. 9(b) align with those in [37]. The measured and simulated ECCs are different but these are relatively small differences compared to those typically caused by hand-prototyping, and by measurement cable effect [38] which was not included in the simulations.…”

Section: B Pcb Iot Diversity Pifas (Benchmark #4)mentioning

confidence: 56%

“…The plots show how the increasing directionality of the propagation (decreasing HPBW) increase the ECC values. This approach shows the power of the pattern inner product approach for evaluating the antenna performance, and thereby its communications performance, see [37]. Figures 20 and 21 show the ECC variations for changes in other propagation parameters while keeping the propagation directionality fixed with a HPBW of 90 degrees.…”

Section: Impact Of Directional Propagation Scenario On Pcb Diversity ...mentioning

confidence: 98%

“…Chassis-mounted Inverted F Antennas (IFAs) are another class of PCB antenna which are often used for cellphone and IoT terminals. In [37], the diversity performance of different configurations of a pair of IFAs was studied. The IFAs on a PCB are normally mounted in the corners of a rectangular chassis, but in [37], we include a pair of colinear IFAs on the long edge as well in order to investigate the impact of spacing only, i.e., without any rotation which brings in polarization diversity.…”

Section: B Pcb Iot Diversity Pifas (Benchmark #4)mentioning

confidence: 99%

“…In [37], the diversity performance of different configurations of a pair of IFAs was studied. The IFAs on a PCB are normally mounted in the corners of a rectangular chassis, but in [37], we include a pair of colinear IFAs on the long edge as well in order to investigate the impact of spacing only, i.e., without any rotation which brings in polarization diversity. Based on that study, a four-IFA configuration is shown in Fig.…”

Section: B Pcb Iot Diversity Pifas (Benchmark #4)mentioning

confidence: 99%

See 3 more Smart Citations

Practical Diversity Design for PCB IoT Terminals

Razmhosseini

Bhattacharya

Vaughan

2020

IEEE Open J. Antennas Propag.

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Mobile or nomadic diversity antennas feature a variety of element types and layouts, mostly PCB-based, reflecting complex design trade-offs between their performance and the required compactness. The design stage is electromagnetic-based but must include several signal-based diversity metrics, and there is a shortfall of information about their assumptions and the impact of their violation. The evaluation stage normally includes simulation, with physical measurements being the bottom line. Pattern measurement is particularly challenging, but accurately measured patterns are critical parameters, enabling the calculation of mean gains and correlations, and the impact of different propagation scenarios. For developers, the complex set of processes for design and evaluation make it difficult to have confidence with their in-house procedures without access to independent results for a variety of antenna types. For the design stage, we review and clarify the diversity metrics, and for evaluation, a set of typical and new diversity designs implemented on printed circuit board (PCB) are also presented. The methods cover lossy antennas and the expected performance in a directional propagation scenario. This information helps designers and developers to better understand the design process and to check their evaluation procedures. INDEX TERMS Mobile antennas, diversity performance benchmarks, MIMO, Internet-of-Things, 5G, von-Mises Fisher distribution, directional propagation. MARYAM RAZMHOSSEINI (Student Member, IEEE) received the B.Eng. degree in computer systems engineering and the M.Sc. degree in communication engineering and signal processing from Cardiff University, U.K., in 2008 and 2010, respectively. She is currently pursuing the Ph.D.

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Section: B Pcb Iot Diversity Pifas (Benchmark #4)mentioning

confidence: 56%

Section: Impact Of Directional Propagation Scenario On Pcb Diversity ...mentioning

confidence: 98%