A 2.7-V 900-MHz/1.9-GHz dual-band transceiver IC for digital wireless communication

Tham, Joo Leong; Margarit, A. S.; Pregardier, B.; Hull, Christopher; Magoon, R.; Carr, F.

doi:10.1109/4.748179

Cited by 46 publications

(1 citation statement)

References 8 publications

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“…Several approaches have been presented to implement the DB-LNAs with high performance operating at two different frequencies. The two single-band parallel LNAs configuration is one of the initial designs presented for DB-LNAs [5][6][7][8]. The measurement results show good performance at each frequency band at the expense of a larger chip area and higher power dissipation.…”

Section: Introductionmentioning

confidence: 99%

Concurrent Dual-Band Inverter-Based Low Noise Amplifier (LNA) for WLAN Applications

2021

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In this paper, a two-stage concurrent dual-band low noise amplifier (DB-LNA) operating at 2.4/5.2-GHz is presented for Wireless Local Area Network (WLAN) applications. The current-reused structure using resistive shunt-shunt feedback is employed to reduce power dissipation and achieve a wide frequency band from low frequency to-5.5-GHz in the inverter-based LNA. The second inverter-based stage is employed to increase the gain and obtain a flat gain over the frequency band. An LC network is also inserted at the proposed circuit output to shape the dual-band frequency response. The proposed concurrent DB-LNA is designed for RF-TSMC 0.18-μm CMOS technology, which consumes 10.8 mW from a power supply of 1.5 V. The simulation results show that the proposed DB-LNA achieves a direct power gain (S 21) of 13.7/14.1 dB, a noise figure (NF) of 4.2/4.6 dB, and an input return loss (S 11) of −12.9/−14.6 dBm at the 2.4/5.2-GHz bands.

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Section: Introductionmentioning

confidence: 99%

Concurrent Dual-Band Inverter-Based Low Noise Amplifier (LNA) for WLAN Applications

2021

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Local oscillator leakage reduction

Lee

Kang

et al. 2002

Micro & Optical Tech Letters

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One of the most important design parameters in a microwave radio transmitting system is to reduce the spurious response from an output spectrum. The spurious signal is primarily due to local oscillator (LO) leakage. Applying the leakage reduction (LR) signal that has the same magnitude and is 180° out of phase with respect to the LO leakage signal, the spurious response can be significantly reduced. © 2002 John Wiley & Sons, Inc. Microwave Opt Technol Lett 32: 379–381, 2002.

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Thin‐film barium strontium titanate varactor tunable dual‐band quadrature hybrid coupler

Djoumessi

Delprat

et al. 2012

Micro & Optical Tech Letters

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A thin‐film barium‐strontium‐titanate (BST) and a conventional silicon varactor tunable dual‐band quadrature hybrid couplers are characterized and compared in this article. Both structures are composed of four quarter‐wavelength sections at a frequency located between the two operating frequencies, and with two pairs of open‐ended stubs. Frequencies tuning make used of BST interdigital and silicon varactor diode capacitors connected at the open‐ended stubs. The characterized BST interdigital capacitor presents a capacitive‐tunability of 52% through an applied voltage of 0 to 25 V, while 82.5% is for the selected commercial silicon varactor diode. The silicon varactor‐tuned dual‐band coupler exhibits 45.9 and 5.2% center operation tuning frequency for the first and the second band, respectively, while 29.2 and 4.3% are achieved by the BST tunable coupler. With two‐tone nonlinear characterization test, the BST tunable coupler biased at 0 and 25 V presents a better IP3 of +25.45 and +35 dBm, respectively, while +11.5 and +34 dBm are obtained for the silicon varactor tunable coupler. © 2012 Wiley Periodicals, Inc. Microwave Opt Technol Lett 54:858–867, 2012; View this article online at wileyonlinelibrary.com. DOI 10.1002/mop.26719

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A 2.7-V 900-MHz/1.9-GHz dual-band transceiver IC for digital wireless communication

Cited by 46 publications

References 8 publications

Concurrent Dual-Band Inverter-Based Low Noise Amplifier (LNA) for WLAN Applications

Concurrent Dual-Band Inverter-Based Low Noise Amplifier (LNA) for WLAN Applications

Local oscillator leakage reduction

Thin‐film barium strontium titanate varactor tunable dual‐band quadrature hybrid coupler

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