Skip to main content Accessibility help
×
Home

A linearity improved quad-band amplifier based on E-CRLH transmission line

  • Rasool Keshavarz (a1), Abbas Mohammadi (a1) and Abdolali Abdipour (a1)

Abstract

This paper outlines a new class of quad-band amplifier (QBA) realized using extended composite right- and left-handed coupled lines. The design procedure to reach the QB CLs with predefined frequency operations and characteristic impedance of their ports is clearly presented. Designed and fabricated QBA operation frequencies are $f_{b_{1}} = 2.9\,GHz$ and ${\rm \;} f_{b_2} = 4.3\,GHz$ (output port B) ${\bi \;} \; f_{f_1} = 3.8\,GHz\; $ and $\; \; f_{f_2} = 5\,GHz\; $ (output port C) and the proposed structure exhibits a matching (−10 dB) bandwidth of over 300 MHz in each operation frequency bands. In addition, the insertion loss is smaller than 1 dB. The length and the width of the proposed QBA are approximately 7.7 and 2.4 cm, respectively. To further demonstrate the idea, a QBA is successfully designed and fabricated. The simulated and measured results of the proposed QBA are presented to verify the proposed idea.

Copyright

Corresponding author

Corresponding author: Dr. Rasool Keshavarz Email: rasoolp92@gmail.com

References

Hide All
[1] Mohammadi, A.; Ghannouchi, F.M.: RF Transciever Design for MIMO Wireless Communications, Springer, Germany, 2012.
[2] Fukuda, A. et al. : Novel 900 MHz/1.9 GHz dual-mode power amplifier employing MEMS switches for optimum matching. IEEE Microw. Wireless Compon. Lett., 14 (2004), 121123.
[3] Ujie, R.; Sato, H.; Ishihara, N.: A dual-band RF-CMOS amplifier using inductive reactance switching, in Topical Meeting on Silicon Monolithic Integrated Circuits in RF Systems, 2007.
[4] Sokal, N.O.; Sokal, A.D.: Class E—a new class of high efficiency tuned single-ended switching power amplifiers. IEEE J. Solid-State Circuits, 10 (1975), 168176.
[5] Lin, I.; Devincentis, M.; Caloz, C.; Itoh, T.: Arbitrary dual-band components using composite right/left handed transmission lines. IEEE Trans. Microw. Theory Tech., 50 (2004), 11421149.
[6] Caloz, C.; Itoh, T.: Electromagnetic Metamaterials: Transmission Line Theory and Microwave Applications, John Wiley & Sons, Hoboken, NJ, 2006.
[7] Mata-Contrera, J.; Camacho-Peñalosa, C.; Martín-Guerrero, T.M.: Diplexing distributed amplifier with improved isolation. Electron. Lett., 47 (2011), 922924.
[8] Keshavarz, R.; Mohammadi, A.; Abdipour, A.: A quad-band distributed amplifier with E-CRLH transmission line. IEEE Trans. Microw. Theory Tech., 61 (2013), 41884194.
[9] Eleftheriades, G.V.: Design of generalized negative-refractive-index transmission lines for quad-band applications. IET Microw. Antennas Propag., 4 (2010), 977981.
[10] Pozar, D.M.: Microwave Engineering, John Wiley, New York, 2003.
[11] Mongia, R.; Bahl, I.; Bhartia, P.: RF and Microwave Coupled line Circuits, Artech House, Norwood, MA, 1999.
[12] Wu, Q.; Testa, M.; Larkin, R.: On design of linear RF power amplifier for CDMA signals. Int. J. RF Microw. Comput.-aided Eng., 8 (1998), 283292.
[13] Chen, C.F.; Huang, T.Y.; Chou, C.P.; Wu, R.B.: Microstrip diplexers design with common resonator sections for compact size, but high isolation. IEEE Trans. Microw. Theory Tech., 54 (2006), 19451952.
[14] Kim, D.H.; Kim, D.; Ryu, J.I.; Kim, J.C.; Park, J.C.; Park, C.D.: A Novel Integrated Tx-Rx Diplexer for Dual-band WiMAX System, IMS, Anaheim, CA, 2010.

Keywords

Metrics

Full text views

Total number of HTML views: 0
Total number of PDF views: 0 *
Loading metrics...

Abstract views

Total abstract views: 0 *
Loading metrics...

* Views captured on Cambridge Core between <date>. This data will be updated every 24 hours.

Usage data cannot currently be displayed