Paper Titles
Volume Water Content Prediction of Variable Bulk Density Soil Based on Spectral Characteristics
p.309
A Theoretical Study of the OH + HN2 Reaction
p.314
The Weibull Distribution of Microhardness in Plasma Sprayed NiCrAl/AT13 Nanostructured Ceramic Coating
p.318
The Optimum of Clearance for Mold in the Piercing Process with Finite Element Method
p.324
An Advanced Traveling Wave Matching Network for DC-12GHz Variable Gain Amplifier Design
p.331
Design of the USB Intelligent Controller
p.336
Review of High Power DC/DC Soft-Switching Converters in Electrical Vehicles Application
p.340
Review on the Technology of on Board DC/DC Conversion for EV Application
p.347
Novel Composite Right/Left-Handed Transmission Lines and their Applications in Infinite Wavelength Resonant Antennas
p.352

An Advanced Traveling Wave Matching Network for DC-12GHz Variable Gain Amplifier Design

Article Preview

Abstract:

A traveling wave matching (TWM) network is proposed for broadband variable gain amplifier design. The TWM network lessens input return loss and noise figure dependence on VGA’s gain, which is adjusted by biasing of the gain control circuit. A wide band (DC to 12 GHz) VGA with the novel TWM network as input matching is implemented in 2μm InGaP/GaAs HBT (fT of 29.5GHz) technology with die size of 1×2 mm2. As gain control voltage sweeps, the VGA shows a gain tuned from -15 dB to 15 dB and an average noise figure ranging from 8dB to 6.5dB, while S11 (lower than -20dB) and S22 (lower than -10dB) almost unchanged over the operation frequency band.

You might also be interested in these eBooks
Mechatronics and Industrial Informatics View Preview

Info:

Periodical:

Applied Mechanics and Materials (Volumes 321-324)

Pages:

331-335

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.321-324.331

Citation:

Cite this paper

Online since:

June 2013

Authors:

Shan Wen Hu, Tao Chen, Huai Gao, Long Xing Shi, G.P. Li

Keywords:

Broadband Amplifier, Broadband Match, Noise Figure (NF), Return Loss, Traveling Wave Matching, Variable Gain

Export:

RIS, BibTeX

Price:

Permissions CCC:

Request Permissions

Permissions PLS:

Request Permissions

Сopyright:

© 2013 Trans Tech Publications Ltd. All Rights Reserved

Share:

Citation:

References

[1] Jianhong Xiao, Iuri Mehr, Jose Silva-Martinez, "A High Dynamic Range CMOS Variable Gain Amplifier for Mobile DTV Tuner," IEEE Journal of Solid-State Circuits, vol. 42, no. 2, pp.292-301, 2007.

DOI: 10.1109/jssc.2006.889386

Google Scholar

[2] Ping Chen, Ze-Yu Liao, Che-Chung Kuo, and Huei Wang, "A Variable Gain Distributed Amplifier with Low Voltage and Low Power in 0.18-μm CMOS Technology," Proceedings of the 41st European Microwave Conference, pp.1134-1137, 2011.

Google Scholar

[3] Kobayashi, Member, A. K. Oki, "A DC-10 GHz High Gain-Low Noise GaAs HBT Direct-Coupled Amplifier," IEEE Microwave and Guided Wave Letters, vol. 5, no. 9, pp.308-310, 1995.

DOI: 10.1109/75.410407

Google Scholar

[4] Shaikh K. Alam, Joanne Degroat, "A 2GHz Variable Gain Low Noise Amplifier in 0.18- μm CMOS," 48th Midwest Symposium on Circuits and Systems, pp.623-626, 2005.

DOI: 10.1109/mwscas.2005.1594178

Google Scholar

[5] K. W. Kobayashi, R. Esfandiari, D. K. Umemoto, A. K. Oki, L. T. Tran, D. C. Streit, "HBT Low Power Consumption 2-4.5GHz Variable Gain Feedback Amplifier," 14th GaAs IC symposium, pp.309-312, 1992.

DOI: 10.1109/gaas.1992.247280

Google Scholar

[6] Yang Kai, Wang Chunhua, Dai Puxing, "A New CMOS Continuous Variable Gain LNA for 3–10GHz UWB Wireless Receivers," Frequenz. Volume 62, Issue 11-12, p.293–296, 2008.

DOI: 10.1515/freq.2008.62.11-12.293

Google Scholar

[7] Behzad Razavi, Turgut Aytur, Christopher Lam, et al., "Multiband UWB Transceivers," IEEE 2005 custom integrated circuits conference, pp.141-148, 2005.

DOI: 10.1109/cicc.2005.1568628

Google Scholar

[8] First Report and Order, Federal Communications Commission Std. FCC 02-48, Feb. 2002.

Google Scholar

[9] H. Gao, A. Chatchaikarn, L. W. Yang and G. P. Li, "A new traveling wave matching structure for enhancing the bandwidth of MMIC broadband amplifiers," IEEE Microwave and Wireless Components Letters, vol. 15, no.8, p.508–509, 2005.

DOI: 10.1109/lmwc.2005.852783

Google Scholar