A CoPrime Array of Patch Antennas for DOA Estimation in Mobile Handheld Devices

Oweis, Ahmad I.; Alawsh, Saleh A.; Muqaibel, Ali H.; Sharawi, Mohammad S.

doi:10.1109/apusncursinrsm.2018.8608308

Cited by 2 publications

(1 citation statement)

References 8 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In [22] a coprime array of patch-based antennas intended for mobile handheld devices operating in the 5.8 GHz band was presented. The simulated radiation pattern was utilised in a DOA estimation algorithm using CS, ending up with curves for estimation error versus SNR and DOA angle.…”

Section: Introductionmentioning

confidence: 99%

Patch and monopole antennas in linear coprime arrays for direction of arrival estimation using compressed sensing

Oweis

Alawsh

Muqaibel

et al. 2019

IET Microwaves, Antennas & Propagation

Self Cite

View full text Add to dashboard Cite

Original work on direction of arrival (DOA) estimation relied on uniform linear arrays (ULAs) of antennas. Most of the work focused on improving the algorithms and the configuration of the antenna array and overlooked the effects of practical antennas on the algorithm performance. Very limited work studied DOA estimation within the physical limitations of handheld devices. In this work, we introduce three nonuniform linear coprime arrays based on patch and monopole antenna elements operating in 2.1 and 5.8 GHz bands and assess their behaviour in DOA estimation. The complex radiation patterns of the arrays were incorporated in the DOA estimation algorithm using compressed sensing (CS). Estimation accuracy is quantified by the root mean square error (RMSE) and the results are compared with those obtained by using isotropic antennas, showing that physical antennas can introduce up to 8° of error. Simulations were also carried out using the multiple signal classification (MUSIC) algorithm to demonstrate the advantage of CS in coprime arrays. The MUSIC algorithm failed to detect all sources even at maximum SNR. The impact of reducing the fundamental inter‐element spacing in coprime arrays below 0.5λ to achieve smaller array sizes is investigated as well.

show abstract

Section: Introductionmentioning

confidence: 99%