$Dual-band circularly-polarised Spidron fractal microstrip patch antenna for Ku-band satellite communication applications$

Dual-band circularly-polarised Spidron fractal microstrip patch antenna for Ku-band satellite communication applications

A dual-band circularly-polarised antenna implemented on a single substrate is proposed for Ku-band satellite communication. A microstrip-fed Spidron fractal patch is utilised to achieve dual-band resonance and circular polarisation. The proposed antenna, with dimensions of 50 × 50 × 1.52 mm3, has al...

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Veröffentlicht in:	Electronics letters 2013-03, Vol.49 (7), p.444-445
Hauptverfasser:	Nguyen Thi, T, Hwang, K.C, Kim, H.B
Format:	Artikel
Sprache:	eng
Schlagworte:	antenna feeds antenna radiation patterns Antennas Antennas and propagation Applied sciences axial ratio bandwidths bandwidth 11.44 GHz to 12.48 GHz bandwidth 13.47 GHz to 14.39 GHz Circuit properties circular polarisation dual‐band circularly‐polarised Spidron fractal microstrip patch antenna dual‐band resonance Electric, optical and optoelectronic circuits Electronics Exact sciences and technology fractal antennas gain 3 dB Ku‐band satellite communication applications loss ‐10 dB microstrip antennas microstrip‐fed Spidron fractal patch Microwave circuits, microwave integrated circuits, microwave transmission lines, submillimeter wave circuits multifrequency antennas polarisation Radiocommunications reflection bandwidths reflector antennas resonant frequency ratio satellite antennas Telecommunications Telecommunications and information theory
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Beschreibung
Zusammenfassung:	A dual-band circularly-polarised antenna implemented on a single substrate is proposed for Ku-band satellite communication. A microstrip-fed Spidron fractal patch is utilised to achieve dual-band resonance and circular polarisation. The proposed antenna, with dimensions of 50 × 50 × 1.52 mm3, has also been fabricated and tested. The measured −10 dB reflection bandwidths are 8.7% (11.44–12.48 GHz) and 6.6% (13.47–14.39 GHz), exhibiting a small resonant frequency ratio of 1.15. The 3 dB axial ratio bandwidths for the lower band and the upper band are 2.96 and 1.68%, respectively.
ISSN:	0013-5194 1350-911X 1350-911X
DOI:	10.1049/el.2012.2973