Miniaturisation in E-Plane Technology
In a simple and cheap way, a planar full-band matching technique allows for miniaturisation of E-plane components. such as corners. shifts. T junctions. Magic Tees. cross-over and quadrature directional couplers a.o. A finline taper has been made half the length of the shortest computer optimized one, having similar performance. A transition to suspended stripline offers possibilities for this line instead of the finline. Although realised for X-band, scaling down to mm waves is our aim as well as application for devices. Additional technical details will be given at the oral presentation.
Millimetre-wave E-plane components and subsystems
This paper describes a variety of E-plane transmission lines which have been shown to be suitable for realizing microwave circuits for frequencies up to at least 140 GHz. A wide range of components has been developed using E-plane circuit techniques and some of these have been integrated together to form complete r.f. subsystems. Several examples of both components and subsystems are described.
Empirical Expressions for Fin-Line Design
This paper presents empirical expressions in closed form for the design of unilateral and bilateral fin-lines. The guided wavelength and the characteristic impedance calculated with these expressions agree, typically, within +- 2 percent with values obtained using numerical techniques in the normalized frequency range 0.35/spl les/= b/ lambda /spl les/= 0.7, which is suitable for most practical applications.