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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Bibliographic Details
Published in:IEEE transactions on antennas and propagation 2013-01, Vol.61 (1), p.430-435
Main Authors: Sun, Hucheng, Guo, Yong-Xin, Wang, Ziliang
Format: Article
Language:English
Subjects:
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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Summary: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