DocumentCode :
1476917
Title :
Miniaturization of Planar Monopole Antenna for Ultrawideband Radios
Author :
Sun, Mei ; Zhang, Yue Ping ; Lu, Yilong
Author_Institution :
RF & Opt. Dept., Inst. for Infocomm Res., Singapore, Singapore
Volume :
58
Issue :
7
fYear :
2010
fDate :
7/1/2010 12:00:00 AM
Firstpage :
2420
Lastpage :
2425
Abstract :
The miniaturization is described of a beveled planar monopole antenna in low temperature coflred ceramic technology for integration with ultrawideband radios. We demonstrate through simulations that a 40% reduction in size can be realized by simply exploiting its structural symmetry. We find that the miniaturized beveled planar monopole antenna exhibits wider impedance bandwidth, higher cross-polar radiation, and slightly lower gain at higher frequencies as compared with its un-miniaturized counterpart. We confirm the miniaturization with the measurements of both un-miniaturized and miniaturized beveled monopole antennas. The miniaturized beveled monopole antenna of size 17 × 10 × 1 mm3 has achieved impedance bandwidth of 8.25 GHz from 2.85 to 11.1 GHz, gain from -5.6 to 2.3 dBi, and broad patterns. Both frequency domain and time domain characteristics of the beveled monopole antennas are also carefully investigated with a normalized measured transfer function.
Keywords :
UHF antennas; microwave antennas; monopole antennas; ultra wideband antennas; ultra wideband communication; bandwidth 8.25 GHz; beveled monopole antennas; coflred ceramic technology; cross-polar radiation; frequency 2.85 GHz to 11.1 GHz; gain -5.1 dB to 2.3 dB; miniaturization; planar monopole antenna; ultrawideband radios; Antenna measurements; Bandwidth; Ceramics; Frequency domain analysis; Frequency measurement; Impedance; Temperature; Time measurement; Ultra wideband antennas; Ultra wideband technology; Planar monopole antennas low temperature cofired ceramic (LTCC) technology; ultrawideband (UWB) antennas; wireless communications;
fLanguage :
English
Journal_Title :
Antennas and Propagation, IEEE Transactions on
Publisher :
ieee
ISSN :
0018-926X
Type :
jour
DOI :
10.1109/TAP.2010.2048851
Filename :
5452980
Link To Document :
بازگشت