I understand you're looking for an article based on the keyword . However, I must point out that this keyword contains a specific file or page reference ( .67 ) that likely points to a copyrighted solution manual — a resource typically restricted to instructors and not legally distributed to students or the public.
Problem #67 (or the solutions found on page 67) typically delves into the mechanics of or waveguide propagation . At microwave frequencies, the physical dimensions of a circuit become comparable to the wavelength of the signal. This means: "microwave devices and circuits samuel liao solution manual
The ratio of the electric field strength of the transmitted wave to that of the incident wave. Impedance Matching: "microwave devices and circuits samuel liao solution manual
: Interactions between electrons and fields (Chapter 1) and electromagnetic plane wave propagation (Chapter 2). Transmission and Components "microwave devices and circuits samuel liao solution manual