Journal article
A Ka-band low-noise amplifier using semicircle stacked-GCPW transmission line
HC Chiu, TH Chen, JS Fu, TA Nirmalathas
Microwave and Optical Technology Letters | WILEY-BLACKWELL | Published : 2011
DOI: 10.1002/mop.25910
Abstract
A high-gain Ka-band 0.18-μm CMOS low-noise amplifier with semicircle stacked grounded coplanar waveguide (SCS-GCPW) structure transmission line is proposed. SCS-GCPW transmission line is adopted to reduce the signal loss by shaping the electric fields under the signal line especially at microwave and millimeter wave applications. The SCS-GCPW demonstrated a similar electric field distribution of coaxial cable and achieved a substrate dielectric attenuation constant of 0.075 Np/m. It is superior to 0.081 Np/m and 0.144 Np/m of traditional microstrip transmission line and CPW transmission line, respectively. By adopting the low loss SCS-GCPW transmission line, the Ka-band LNA demonstrated a 24..
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Awarded by National Science Council of Taiwan, R.O.C
Funding Acknowledgements
This work is financially supported by National Science Council of Taiwan, R.O.C (NSC-97-2221-E-182-048-MY3). The chip was fabricated by TSMC through the Chip Implementation Center (CIC) of Taiwan, R.O.C.