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http://dx.doi.org/10.5515/KJKIEES.2007.18.5.503

Internal Antenna Design for GSM900/DCS1800/PCS1900 Using an Overlap of Return Loss  

Jang, Byung-Chan (School of Electrical Engineering and Computer Science, Kyungpook National University)
Kim, Che-Young (School of Electrical Engineering and Computer Science, Kyungpook National University)
Publication Information
Abstract
This paper proposes the design scheme of internal triple band antenna intended for using in GSM900, DCS1800, and PCS1900 bands. The suggested folding metal plates of the two branches are mounted on a dielectric coated ground plane for size miniaturization and durability. Return losses are overlapped when length of metal branches are controlled. This is important technique for wide band operation. For the suggested antenna geometry its return loss was calculated by HFSS 9 simulator, and was shown to be -10 [dB] less within the required band. Also, gain and radiation pattern of antenna were measured using far field measurement system in an anechoic chamber. The measured peak gain is more than 3.0 [dBi], and the average gain is over -1.0 [dBi] for the triple band, which is regarded as satisfactory for the internal antenna application. Also, the radiation pattern for two frequencies shows a similar shape each other within the required band.
Keywords
Internal Triple Band Antenna; Return Loss; GSM900; DCS1800; PCS1900;
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Times Cited By KSCI : 1  (Citation Analysis)
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