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http://dx.doi.org/10.5515/KJKIEES.2012.23.5.551

Design of a Dual-Band Loop-Type Ground Antenna Using Lumped-Elements  

Lee, Hyung-Jin (Department of Electronic and Computer Engineering, Hanyang University)
Liu, Yang (Department of Electronic and Computer Engineering, Hanyang University)
Lee, Jae-Seok (Department of Electronic and Computer Engineering, Hanyang University)
Kim, Hyung-Hoon (Department of Electronic and Computer Engineering, Hanyang University)
Kim, Hyeong-Dong (Department of Electronic and Computer Engineering, Hanyang University)
Publication Information
The Journal of Korean Institute of Electromagnetic Engineering and Science / v.23, no.5, 2012 , pp. 551-558 More about this Journal
Abstract
This paper presents a dual band loop-type ground antenna using lumped-elements that control the impedance bandwidth and resonant frequency. The dual-band operation of the proposed antenna is realized by inserting an additional resonated loop feed structure into the reference ground antenna. As the proper value of the capacitor and the inductor are chosen, the impedance bandwidth of our antenna with voltage standing wave ratio(VSWR) equal to 3 is 85 MHz and 725 MHz at the 2.45 and 5.5 GHz frequency band, respectively. Its validity is demonstrated via both the computed and measured results. Good antenna patterns and efficiencies are achieved at the dual frequency bands, as well as the physically small antenna element size($10{\times}5mm^2$).
Keywords
Dual-Band Antenna; Lumped-Elements; Controlling Impedance; And Resonance Frequency;
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