Reconfigurable Ultra Low Power LNA With and Without in Band Interference Rejection for IoT Application
In this paper, a reconfigurable Ultra low power Low Noise Amplifier (LNA) is presented. In this work,subthreshold driven Common Gate (CG) input stage is modified to provide wideband input matchingand a current reuse noise cancelling technique is introduced toimprove noise performance. Additionally, substantial reductionin power consumption is obtained by driving the MOS devices insubthreshold region.To provide dual output i.e. with and without Interference Rejection a High Isolation and Low Insertion Loss SPDT Switch is used. Negative Gm Based LC Series Notch Filter is used for the interference rejection. This Circuit achieved a gain of 10 dB (1 dB) with NF 6.3-7.2 over the bandwidth of 1.5-5.5 GHz in one port and 35dB Inference rejection of Narrow band @2.45GHz, A very high Isolation is obtained between the two ports i.e. 54dB. This is suitable for IOT Wireless Sensor Nodes. The circuit is simulated in Cadence Virtuoso using Spice Models in TSMC 65nm node.
 M. Paravizi, K.Allidina and M.N. El-Gamal, “Short Channel output Conductance Enhancement Through forward Body Biasing to Realize a 0.5V 250 uW 0.6-4.5 GHz Current Reuse LNA” IEEE J. of Solid State Circuts, vol.51,no.3,pp.574-586 March 2016.
 A.R.A Kumar, A. Dutta, S.G. Singh, “A 1.5-7.5 GHz Low Power LNA Design Using Subthreshold Technique for Wireless Sensor Network(WSN) Application”, IEEE ISCAS pp.1943-1946, May 2016
Wei Wu, O.Novak, C.T. Charles, Xiayo Fan, “A Low Power 3.1-5GHz Ultra-wide band Low Noise Amplifier Utilizing Miller Effect”, IEEE Int. Conference on UWB, pp.255-259, sept 2009,
 Mei-Chao Yeh, IEEE, Zuo-Min Tsai, Ren-Chieh Liu, Member, Ying-Tang Chang, and Huei Wang, “Design and Analysis for a Miniature CMOS SPDT Switch Using Body-Floating Technique to Improve Power Performance”, IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES, VOL. 54, NO. 1, JANUARY 2006
 Shuen-Chien Chang, Sheng-Fuh Cha, Ting-YuehChih,and Jian-An Ta “An Internally-Matched High-Isolation CMOS SPDT Switch Using Leakage Cancellation Technique”, IEEE MICROWAVE AND WIRELESS COMPONENTS LETTERS, VOL. 17, NO. 7, JULY 2007
 Mary Teshiba, Glenn Sakamoto, Terry Cisco , “A Compact SPDT Switch in 0.18um CMOS Process With High Linearity and Low Insertion Loss” IEEE CSIC 2007
 Qiang Li, Member, IEEE, Y. P. Zhang, Kiat Seng Yeo, Member, IEEE, and Wei Meng Lim, “16.6- and 28-GHz Fully Integrated CMOS RF Switches with Improved Body Floating”, IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES, VOL. 56, NO. 2, FEBRUARY 2008
To ensure uniformity of treatment among all contributors, other forms may not be substituted for this form, nor may any wording of the form be changed. This form is intended for original material submitted to AJCT and must accompany any such material in order to be published by AJCT. Please read the form carefully.
The undersigned hereby assigns to the Asian Journal of Convergence in Technology Issues ("AJCT") all rights under copyright that may exist in and to the above Work, any revised or expanded derivative works submitted to AJCT by the undersigned based on the Work, and any associated written, audio and/or visual presentations or other enhancements accompanying the Work. The undersigned hereby warrants that the Work is original and that he/she is the author of the Work; to the extent the Work incorporates text passages, figures, data or other material from the works of others, the undersigned has obtained any necessary permission. See Retained Rights, below.
AJCT distributes its technical publications throughout the world and wants to ensure that the material submitted to its publications is properly available to the readership of those publications. Authors must ensure that The Work is their own and is original. It is the responsibility of the authors, not AJCT, to determine whether disclosure of their material requires the prior consent of other parties and, if so, to obtain it.
RETAINED RIGHTS/TERMS AND CONDITIONS
1. Authors/employers retain all proprietary rights in any process, procedure, or article of manufacture described in the Work.
2. Authors/employers may reproduce or authorize others to reproduce The Work and for the author's personal use or for company or organizational use, provided that the source and any AJCT copyright notice are indicated, the copies are not used in any way that implies AJCT endorsement of a product or service of any employer, and the copies themselves are not offered for sale.
3. Authors/employers may make limited distribution of all or portions of the Work prior to publication if they inform AJCT in advance of the nature and extent of such limited distribution.
4. For all uses not covered by items 2 and 3, authors/employers must request permission from AJCT.
5. Although authors are permitted to re-use all or portions of the Work in other works, this does not include granting third-party requests for reprinting, republishing, or other types of re-use.
INFORMATION FOR AUTHORS
AJCT Copyright Ownership
It is the formal policy of AJCT to own the copyrights to all copyrightable material in its technical publications and to the individual contributions contained therein, in order to protect the interests of AJCT, its authors and their employers, and, at the same time, to facilitate the appropriate re-use of this material by others.
If you are employed and prepared the Work on a subject within the scope of your employment, the copyright in the Work belongs to your employer as a work-for-hire. In that case, AJCT assumes that when you sign this Form, you are authorized to do so by your employer and that your employer has consented to the transfer of copyright, to the representation and warranty of publication rights, and to all other terms and conditions of this Form. If such authorization and consent has not been given to you, an authorized representative of your employer should sign this Form as the Author.
AJCT requires that the consent of the first-named author and employer be sought as a condition to granting reprint or republication rights to others or for permitting use of a Work for promotion or marketing purposes.
1. The undersigned represents that he/she has the power and authority to make and execute this assignment.
2. The undersigned agrees to indemnify and hold harmless AJCT from any damage or expense that may arise in the event of a breach of any of the warranties set forth above.
3. In the event the above work is accepted and published by AJCT and consequently withdrawn by the author(s), the foregoing copyright transfer shall become null and void and all materials embodying the Work submitted to AJCT will be destroyed.
4. For jointly authored Works, all joint authors should sign, or one of the authors should sign as authorized agent
for the others.
Licenced by :