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http://dx.doi.org/10.5515/KJKIEES.2011.22.2.125

SIW-Based 2×4 Array Antenna with a Sequential Feeding for X-Band Satellite Communication  

Jung, Eun-Young (Department of Electronic Engineering and Avionics, Korea Aerospace University)
Lee, Jae-Wook (Department of Electronic Engineering and Avionics, Korea Aerospace University)
Lee, Taek-Kyung (Department of Electronic Engineering and Avionics, Korea Aerospace University)
Lee, Woo-Kyung (Department of Electronic Engineering and Avionics, Korea Aerospace University)
Publication Information
The Journal of Korean Institute of Electromagnetic Engineering and Science / v.22, no.2, 2011 , pp. 125-130 More about this Journal
Abstract
In this paper, SIW-based $2{\times}4$ uniform array antenna with a sequentially fed 8-way power divider with an equal division characteristic is proposed for an application of X-band satellite communication. In particular, sequential feeding structures with a progressive phase difference of 90 degrees between the nearest elements have been suggested to protect the cancellation of electric fields due to the array alignments and to enhance the purity of RHCP(Right-Handed Circular Polarization). The obtained results according to the return loss bandwidth, RHCP antenna gain, axial ratio bandwidth are 760 MHz ranging from 7.90 to 8.66 GHz under the criterion of less than -10 dB, 14.3 dBic at 8.3 GHz, and 600 MHz from 8.15 to 8.75 GHz, respectively. In addition, it is observed that the equal-division characteristic of SIW-based 8-way power divider is approximately -9.2 dB in all ports.
Keywords
X-Band; SIW; Array; Sequential; RHCP;
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