Array Antenna Limitations
2013 (English)In: IEEE Antennas and Wireless Propagation Letters, ISSN 1536-1225, E-ISSN 1548-5757, Vol. 12, 1539-1542 p.Article in journal (Refereed) Published
This letter defines a physical-bound-based array figure of merit for both single and multiband array antennas. It provides a measure to compare their performance with respect to return loss, bandwidth(s), thickness of the array over the ground plane, and scan range. The result is based on a sum-rule result of Rozanov-type for linear polarization. For single-band antennas, it extends an existing limit for a given fixed scan-angle to include the whole scan range of the array, as well as the unit-cell structure in the bound. The letter ends with an investigation of the array figure of merit for some wideband and/or wide-scan antennas with linear polarization. We find arrays with a figure of merit >0.6 that empirically defines high-performance antennas with respect to this measure.
Place, publisher, year, edition, pages
2013. Vol. 12, 1539-1542 p.
All-in-one arrays, antenna theory, array antenna limitations, bandwidth limitation, electromagnetic analysis, figure of merit, physical bound
Electrical Engineering, Electronic Engineering, Information Engineering Telecommunications
IdentifiersURN: urn:nbn:se:kth:diva-139186DOI: 10.1109/LAWP.2013.2291362ISI: 000328053100009ScopusID: 2-s2.0-84900522570OAI: oai:DiVA.org:kth-139186DiVA: diva2:687367
QC 201401142014-01-142014-01-082014-01-14Bibliographically approved