论文信息 - Design of dual-band amplifier using three-section dual-frequency matching structure

Design of dual-band amplifier using three-section dual-frequency matching structure

In this paper, we propose a new design method for amplifiers which can operate at two arbitrary frequencies. A novel three-section transformer is presented here, to match the complex frequency-dependent impedances of transistors at two bands. Analytical equations are derived to achieve the exact closed-form solutions of three-section transformers. An amplifier is fabricated as an example, and simulation and measurement results prove the validity of the matching approach.

Fan Wu | Yuan'an Liu | Xin Liu | Shulan Li

[1] C. Monzon. A small dual-frequency transformer in two sections , 2003 .

[2] Franco Giannini,et al. Matching network design criteria for wideband high‐frequency amplifiers , 2005 .

[3] Y.L. Chow,et al. A transformer of one-third wavelength in two sections - for a frequency and its first harmonic , 2002, IEEE Microwave and Wireless Components Letters.

[4] C. Monzon. Analytical derivation of a two-section impedance transformer for a frequency and its first harmonic , 2002, IEEE Microwave and Wireless Components Letters.

[5] Shulan Li,et al. A Dual-Frequency Transformer for Complex Impedances With Two Unequal Sections , 2009 .

[6] P. Colantonio,et al. A new approach to design matching networks with distributed elements , 2004, 15th International Conference on Microwaves, Radar and Wireless Communications (IEEE Cat. No.04EX824).

[7] S. Orfanidis,et al. A two-section dual-band Chebyshev impedance transformer , 2003, IEEE Microwave and Wireless Components Letters.