Design and Implementation of Low Noise Amplifier At 60ghz using Current Mirror Feedback
S. B. Rashmi1, Siva S Yellampalli2

1S. B. Rashmi, Don Bosco Institute of Technology, Bangalore, Karnataka, India.

2Dr. S. Siva Yellampalli, Principal, UTL Technologies Ltd, VTU Extension Center, Bengaluru India.

Manuscript received on 02 July 2019 | Revised Manuscript received on 16 July 2019 | Manuscript Published on 23 August 2019 | PP: 249-254 | Volume-8 Issue-9S3 August 2019 | Retrieval Number: I30450789S319/2019©BEIESP | DOI: 10.35940/ijitee.I3045.0789S319

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Abstract: This discourse used 45nm CMOS technology to design a Low noise amplifier for a Noise figure < 2dB and gain greater than 13dB at the 60GHz unlicensed band of frequency. A single stage, primary cascode LNA is modeled and its small signal model is analyzed. Common source structure is hired in the driver stage to escalate the output power with single stage contours. To enhance small signal gain, simple active transistor feedback and cascode feedback configurations are designed and appended to the basic LNA. In addition to this, current re-use inductor is designed and added to the cascode amplifier which is deliberated to give low power and low noise figure. Small signal analysis of simple active transistor feedback and current re-use inductor has been presented. The measurement results indicated that the input match and the output gain at 60GHz achieves -8dB and 13dB respectively with the supply voltage of 900mV. The frequency response obtained is a narrow band response with 6GHz of bandwidth. The circuit is simulated by Cadence Virtuoso tool. The layout of the related circuit is drawn by means of the Virtuoso Layout editor with total size of 0.1699μm2.

Keywords: 60GHz, Current mirror feedback, LNA, low noise figure, RF amplifier.
Scope of the Article: Heterogeneous Wireless Networks