A Quadrature Hybrid Coupler Based T/R Front-End

被引：0
|
作者：
Maurya, Uday [1 ]
Arrawatia, Mahima [1 ]
Nallam, Nagarjuna [2 ]
机构：
[1] IIT Guwahati, Dept EEE, Gauhati, Assam, India
[2] Qualcomm India Pvt Ltd, Bangalore, Karnataka, India
来源：
2023 IEEE INTERNATIONAL SYMPOSIUM ON CIRCUITS AND SYSTEMS, ISCAS | 2023年
关键词：
DESIGN;
D O I：
10.1109/ISCAS46773.2023.10181796
中图分类号：
TP18 [人工智能理论];
学科分类号：
081104 ; 0812 ; 0835 ; 1405 ;
摘要：
This paper presents a quadrature hybrid coupler (QHC) based transmit-receive (T/R) front-end module (FEM). The QHC offers impedance transformation over a large bandwidth and power combining during the transmit mode. A 38 GHz T/R FEM is designed in a 65-nm CMOS process to validate the concept. The QHC is realized using lumped inductors and capacitors. The power amplifier (PA) has a 3-dB bandwidth of 7 GHz, from 34 GHz to 41 GHz. Post layout simulations show a saturated output power (Psat) of 17.3 dBm with 13.5 % power added efficiency (PAE) at 38 GHz. The lower noise amplifier (LNA) has 16.5 dB voltage gain and 5.6 dB noise figure (NF) at 38 GHz while consuming 8.72 mW power.
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页数：4
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