A K-Band RF-MEMS-Enabled Reconfigurable and Multifunctional Low-Noise Amplifier Hybrid Circuit | Zendy

R. Malmqvist | Zendy; C. Samuelsson | Zendy; Anders Gustafsson | Zendy; Pekka Rantakari | Zendy; S. Reyaz | Zendy; T. Vähä-Heikkilä | Zendy; Anders Rydberg | Zendy; J. Varis | Zendy; Derek Smith | Zendy; Rens Baggen | Zendy

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A K-Band RF-MEMS-Enabled Reconfigurable and Multifunctional Low-Noise Amplifier Hybrid Circuit

Author(s) -

R. Malmqvist,

C. Samuelsson,

Anders Gustafsson,

Pekka Rantakari,

S. Reyaz,

T. Vähä-Heikkilä,

Anders Rydberg,

J. Varis,

Derek Smith,

Rens Baggen

Publication year - 2011

Publication title -

active and passive electronic components

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.144

H-Index - 22

eISSN - 1026-7034

pISSN - 0882-7516

DOI - 10.1155/2011/284767

Subject(s) - noise figure , linearity , amplifier , low noise amplifier , microelectromechanical systems , noise (video) , radio frequency , materials science , electrical engineering , telecommunications , optoelectronics , computer science , cmos , engineering , artificial intelligence , image (mathematics)

A K-band (18–26.5 GHz) RF-MEMS-enabled reconfigurable and multifunctional dual-path LNA hybrid circuit (optimised for lowest/highest possible noise figure/linearity, resp.) is presented, together with its subcircuit parts. The two MEMS-switched low-NF (higher gain) and high-linearity (lower gain) LNA circuits (paths) present 16.0 dB/8.2 dB, 2.8 dB/4.9 dB and 15 dBm/20 dBm of small-signal gain, noise figure, and 1 dB compression point at 24 GHz, respectively. Compared with the two (fixed) LNA subcircuits used within this design, the MEMS-switched LNA circuit functions show minimum 0.6–1.3 dB higher NF together with similar values of P1 dB at 18–25 GHz. The gain of one LNA circuit path is reduced by 25–30 dB when the MEMS switch and active circuitry used within in the same switching branch are switched off to select the other LNA path and minimise power consumption

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