DocumentCode :
3393652
Title :
A critical look at the problem of small antenna design and a review of physics-based performance limitations of these antennas
Author :
Mittra, Raj
Author_Institution :
EMC Lab., Penn State Univ., University Park, PA
fYear :
2008
fDate :
17-18 March 2008
Firstpage :
2
Lastpage :
5
Abstract :
The purpose of this review paper is to critically examine some the physics-based fundamental limitations. Using metamaterials and/or other exotic physical phenomena for performance. This, in turn, prompts us to critically examine the effective medium theories, and rigorously model the physical structures that show promise rather than their effective medium equivalents to see if indeed their actual performance is consistent with that predicted by their effective medium representation. The paper investigates several representative structures, such as substrates and superstrates for microstrip patch antennas, to sort out the issue mentioned above, and concludes that the only reliable approach to characterizing these media is to simulate the physical structure, and not rely solely on their effective medium representations. Next, the paper develops a systematic strategy to designing antenna/meta-material composites that totally bypasses the effective medium approach.
Keywords :
metamaterials; microstrip antennas; metamaterial; microstrip patch antenna; small antenna design; Antennas and propagation; Cameras; Digital audio players; Electromagnetic compatibility; Electromagnetic devices; Global Positioning System; Metamaterials; Mobile antennas; Mobile handsets; Portable computers;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Antennas and Propagation Conference, 2008. LAPC 2008. Loughborough
Conference_Location :
Loughborough
Print_ISBN :
978-1-4244-1893-0
Electronic_ISBN :
978-1-4244-1894-7
Type :
conf
DOI :
10.1109/LAPC.2008.4516850
Filename :
4516850
Link To Document :
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