Create_Transmission-Line_Matching_Circuits_For_Power_Amplifiers_DESIGN FEATURE CAE Matching Create Transmission-Line Matching Circuits For Power Amplifiers Andrei V. Grebennikov Institute of Microelectronics, 11 Science Park Rd., Singapore Science Park II, Singapore 117685; (65) 770 5494, FAX: (65) 773 1915, e-mail: andrei@ime.org.sg. A simplified approach to the design of transmission-line matching circuits uses analytical equations to calculate the circuits elements for L, , and T transformers. M ATCHING circuits allow power amplifiers (PAs) to attain high gain, high linearity, high efficiency, and high stability over a narrow or wide frequency band. The techniques for designing PAmatching circuits are especially important for circuits that use transmission lines, where determining circuit parameters is more complicated than for lumped-element ma……