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Title: Integration of circular polarized array and LNA in LTCC as a 60-GHz active receiving antenna
Authors: Sun, M.
Zhang, Y.-Q.
Guo, Y.-X. 
Karim, M.F.
Chuen, O.L.
Leong, M.S. 
Keywords: 60-GHz radio
Aperture-coupled patch antenna array
millimeter wave
receiver front end
sequential rotation
wireless personal area network
Issue Date: Aug-2011
Source: Sun, M., Zhang, Y.-Q., Guo, Y.-X., Karim, M.F., Chuen, O.L., Leong, M.S. (2011-08). Integration of circular polarized array and LNA in LTCC as a 60-GHz active receiving antenna. IEEE Transactions on Antennas and Propagation 59 (8) : 3083-3089. ScholarBank@NUS Repository.
Abstract: A compact 60-GHz active receiving antenna array is designed and fabricated using low temperature co-fired ceramic (LTCC) technology. It integrates a 4×4 circularly polarized (CP) patch array and a 21-dB low noise amplifier (LNA) into the same package substrate. By applying a stripline sequential rotation feeding scheme the CP array exhibits a wide impedance bandwidth SWR2 and 3-dB axial ratio bandwidth, both over 8 GHz, as well as a beam-shaped pattern with a 3-dB beam width of 20̂ and a peak gain of 16.8 dBi. By applying a bond wire compensation scheme and low-loss transition optimization, the LNA is successfully integrated into the package. The final fabricated prototype measures only 13×20×1.4 mm 3, demonstrates the good integration performance as well as the CP polarization characteristics in measurement, and is estimated to have a peak overall gain of at least 35 dBi. © 2011 IEEE.
Source Title: IEEE Transactions on Antennas and Propagation
ISSN: 0018926X
DOI: 10.1109/TAP.2011.2158781
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