Designs of dual band microwave components and their applications

Abstract

This paper presents the designs and the applications of dual band microwave components. For the designs of microwave components, we introduced a dual band coupler, a dual band crossover and a dual band balun. Analytical equations are derived to design the proposed dual band components. To demonstrate the applications of proposed dual band devices, we present a dual band Butler matrix and a dual band RF sensor. Both of them have shown improved performance (e.g. robustness, and measurement stability).

Electromagnetic moisture measurement

“…Many miniaturized measurement sensors in use [253][254][255][256][257][258][259][260] are based on coplanar waveguide structures to which geometrically well-defined micrometerscale fluidic channels are connected [261]. As an example, a twostrip configuration is shown in Figure 43.…”