60-GHz Circularly Polarized U-Slot Patch Antenna Array on LTCC

This communication presents a 60-GHz wideband circularly polarized (CP) U-slot patch antenna array of 4 × 4 elements on low temperature cofired ceramic (LTCC). A CP U-slot patch antenna is used as the array element to enhance the impedance bandwidth and a stripline sequential rotation feeding scheme...

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Veröffentlicht in:	IEEE transactions on antennas and propagation 2013-01, Vol.61 (1), p.430-435
Hauptverfasser:	Sun, Hucheng, Guo, Yong-Xin, Wang, Ziliang
Format:	Artikel
Sprache:	eng
Schlagworte:	60 GHz antenna array Antenna arrays Antenna measurements Antennas Applied sciences Arrays Bandwidth circularly polarized (CP) Exact sciences and technology Impedance low temperature cofired ceramic (LTCC) Patch antennas Probes Radiocommunications Telecommunications Telecommunications and information theory U-slot
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Beschreibung
Zusammenfassung:	This communication presents a 60-GHz wideband circularly polarized (CP) U-slot patch antenna array of 4 × 4 elements on low temperature cofired ceramic (LTCC). A CP U-slot patch antenna is used as the array element to enhance the impedance bandwidth and a stripline sequential rotation feeding scheme is applied to achieve wide axial ratio (AR) bandwidth. Meanwhile, a grounded coplanar waveguide (GCPW) to stripline transition is designed for probe station measurement. The fabricated antenna array has a dimension of 14 ×16 × 1.1 mm 3 . The simulated and measured impedance bandwidths, AR bandwidths, and radiation patterns are investigated and compared. Measured results show that the proposed antenna array has a wide impedance bandwidth from 50.5 GHz to 67 GHz for \|S 11 \|
ISSN:	0018-926X 1558-2221
DOI:	10.1109/TAP.2012.2214018