This paper discusses the electromagnetic and electrical parameters available for the analysis of an elliptic dielectric resonator dual mode filter. An example of a practical filter for 4 GHz frequency is presented. 

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

The design and performance of an integrated mm-wave 6-port is presented. The design uses Fin-Line technology and beam-lead diode detectors in a Ka-full-band application. The high precision measurement capability of the 6-port device has been verified in an automated 6-port network analyzer setup. 

It is shown and circular -lines. tion that complex modes, with which are known inserts, with to exist can also complex field in rectangular exist in fin propagaof such waveguides modes dielectric These exist always signs. in pairs conjugate of one mode constants does of opposite The electric a pair field not couple mode to its own magnetic in such reactive. a way that field,

The fin-line step discontinuity is an essential component in millimeter-wave integrated circuits. The discontinuity problem is formulated using an unknown magnetic current in the transverse junction plane. A numerical solution is obtained by a method termed the Generalized Variational Method, which is an extension of the traditional variational method. Illustrative examples of scattering parameter

The frequency range of six-port reflectometry is extended to the range of submillimeter waves by a new quasi-optical six-port device consisting of quasi-optical components such as beam-splitters, reflectors and lenses. The complex reflection coefficient is determined in terms of simple power measurements using commercial r.f. power meters including X-band waveguide thermistor heads. The uncertaint

The theory and realization of a solid state cold load working at millimeter frequencies and at room temperature giving a stable noise temperature of approximately -50°C is presented. Measurements of the load were made in a temperature profiling radiometer in the frequency range 52.8-58.8 GHz. 

.A..new radioastronomical cooled receiver is presented here. It works in the range 210-240 GHz with a DSB system noise of 560 K presently and a 600 MHz instantaneous bandwidth. It contains a local oscillator (klystron + varactor tripIer), a Schottky diode mixer wIth a cooled FET amplifier and uses quasi-optical techniques for signal injection. .A..microprocessor drives the whole system and

Several scaled models have been used to determine the contributions of various waveguide mount parameters to the embedding impedance of a mm-wave superconductor-insulator-superconductor (SIS) mixer. Measured effects of waveguide height, substrate orientation and width, junction location, lead inductance and RF-filter impedance are presented and discussed. 

Methods are discussed for a more accurate determination of Schottky diode Values of ideality factor n and series resistance Rs from I-V measurements. R for various millimeter wave Schottky-barrier diodes are given to demons~rate the difference given by different approaches.