High dynamic range X-band MMIC VGLNA for transmit/receive module

• Published in: 2016 IEEE Sixth International Conference on Communications and Electronics (ICCE) pp. 225 - 229
• Main Authors: Pham, Binh L., Nguyen, Duy P., Anh-Vu Pham, Le, Phong D.
• Format: Conference Proceeding
• Language: English
• Published: IEEE 01-07-2016
• Subjects: GaAs; Gain; Impedance; Inductors; Logic gates; Low noise amplifier; Noise figure; Resistors; Transistors; transmit/receive module; Voltage controlled attenuator; X-Band
• ISBN: 1509018026; 9781509018024
• DOI: 10.1109/CCE.2016.7562640

In this paper, a monolithic variable gain low noise amplifier (VGLNA) for transmit/receive module is presented. The voltage controlled attenuator (VCA) in the VGLNA helps to control the gain of the LNA for 20 dB range. This core-chip achieves a high dynamic range with the measured minimum Noise Figure (NF) of 1.2 dB and OIP3 of 29 dBm at 9 GHz. The operating bandwidth of this chip is from 7.5 GHz to 10.5 GHz. Within this band, the chip has the NF lower than 1.5 dB, the gain higher than 24 dB and the OIP3 better than 25 dBm. The 1 dB compression point is 14 dBm at the output.