title: 50 MHz-10 GHz low-power resistive feedback current-reuse mixer with inductive peaking for cognitive radio receiver.
abstract: A low-power wideband mixer is designed and implemented in 0.13 µm standard CMOS technology based on resistive feedback current-reuse (RFCR) configuration for the application of cognitive radio receiver. The proposed RFCR architecture incorporates an inductive peaking technique to compensate for gain roll-off at high frequency while enhancing the bandwidth. A complementary current-reuse technique is used between transconductance and IF stages to boost the conversion gain without additional power consumption by reusing the DC bias current of the LO stage. This downconversion double-balanced mixer exhibits a high and flat conversion gain (CG) of 14.9 ± 1.4 dB and a noise figure (NF) better than 12.8 dB. The maximum input 1-dB compression point (P1dB) and maximum input third-order intercept point (IIP3) are -13.6 dBm and -4.5 dBm, respectively, over the desired frequency ranging from 50 MHz to 10 GHz. The proposed circuit operates down to a supply headroom of 1 V with a low-power consumption of 3.5 mW.
authors.affiliation: Department of Electrical Engineering, University of Malaya, 50603 Kuala Lumpur, Malaysia.
authors.forename: Nandini
authors.identifier: 0000-0003-2050-0435
authors.initials: N
authors.lastname: Vitee
authors.affiliation: Department of Electrical Engineering, University of Malaya, 50603 Kuala Lumpur, Malaysia.
authors.forename: Harikrishnan
authors.identifier: 0000-0003-3505-6525
authors.initials: H
authors.lastname: Ramiah
authors.affiliation: Department of Electrical Engineering, University of Malaya, 50603 Kuala Lumpur, Malaysia.
authors.forename: Wei-Keat
authors.identifier: 0000-0003-4968-0935
authors.initials: WK
authors.lastname: Chong
authors.affiliation: Department of Electrical and Electronic Engineering, Segi University, Jalan Teknologi, Kota Damansara, 47810 Petaling Jaya, Selangor, Malaysia.
authors.forename: Gim-Heng
authors.identifier: 0000-0002-4705-9603
authors.initials: GH
authors.lastname: Tan
authors.affiliation: Department of Electrical Engineering, University of Malaya, 50603 Kuala Lumpur, Malaysia.
authors.forename: Jeevan
authors.identifier: 0000-0001-9949-3105
authors.initials: J
authors.lastname: Kanesan
authors.affiliation: Department of Electrical Engineering, University of Malaya, 50603 Kuala Lumpur, Malaysia.
authors.forename: Ahmed Wasif
authors.initials: AW
authors.lastname: Reza
mesh_terms: D004581:Electronics / Q000295:instrumentation* / Q000379:methods; D011845:Radio / Q000295:instrumentation*