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EXPERIMENTAL VERIFICATION OF THE DISCONTINUITY EFFECTS IN COMBLINE FILTERS
EXPERIMENTAL LINE FILTERS VERIFICATION OF THE DISCONTINUITY EFFECTS IN COMB- M. Politi, G. Gentilil , V. Artelli2 ABSTRACT With reference to comb-line filters composed of circular rods between ground planes, shunted by open-circuited sections of coax-lines, the values of the ground and mutual discontinuitycapacitances are reported for a wide range of normalized dimensions. The resulting mode
A MIXED DUAL-QUADRUPLE MODE 10-POLE FILTER
A MIXED DUAL-QUADRUPLE MODE 1Q-POLE FILTER A. E. Williams* and R. R. Bonetti* ABSTRACT A novel realization of a 10-pole bandpass filter in three cylindrical waveguide cavities is described. This filter uses two cavities having quadruple-mode degeneracy and one having dual-mode degeneracy. Experimental results obtained with a prototype 12.1-GHz quasi-elliptic response are shown to agree well with
INTERDIGITAL BAND-PASS FILTER WITH HALF-WAVE RESONATORS
INTERDIGITAL Henryk BAND-PASS FILTER WITH HALF-WAVE RESONATORS GRUCHALA,Bronislaw STEC * ABSTRACT -------New kind of interdigital filter is considered. Quarter-wave length resonators, which are usually used have been replaced by half-wave resonators. This solution permits to apply interdigital filters up K frequency band. Coupled structures excited in the centre of input resonators are des
INVESTIGATIONS OF THE TEMPERATURE SENSITIVITY OF DUAL-BAND DUAL-MODE INWATE FILTERS FOR SATELLITE CONVERTERS
INVESTIGATIONS DUAL-MODE Frank Henze, OF THE INWATE TEMPERATURE SENSITIVITY OF DUAL-BAND FILTERS FOR SATELLITE CONVERTERS Johann H. Hinken Jozef Modelski, * ABSTRACT Investigations of temperature sensitivity of INWATE-circuits are presented. INWATE-circuits are in principle dielectric filled waveguides and adhesion problems may occur due to the different thermal expansion coefficients of the
EVANESCENT MODE WAVEGUIDE BANDPASS FILTER WITH NON-TOUCHING E-PLANE FINS AND CAPACITIVE IRIS
EVANESCENT MODE WAVEGUIDE BANDPASS FILTER WITH NON-TOUCHING E-PLANE FINS AND CAPACITIVE IRIS K.S. Kong*, Y. Nikawa**, T. Itoh* ABSTRACT A design method based on an optimization is presented for an evanescent mode waveguide bandpass filter with non-touching E-plane fins. Broadband bandpass filters combined with a capacitive iris with a passband as wide as 15% are designed by this method. The the
The Corrugated-Waveguide Band-Pass Filter - A New Type of Waveguide Filter
The Corrugated-Waveguide A New Type Sand-P... Filter Filter - of Waveguide Wolfgang Hauth, Reinhard Keller, Uwe Rosenberg. Abstract A new type of waveguide band-pass filter has been realized by combining a corrugated low-pass structure and a high-pass configuration based on the cut-off effect. Low-pass and high-pass functions depend on each other. Therefore after an initial standard synthesis
THERMAL RESPONSE OF A LOSSY TWO-PORTS TO A CORRELATION RADIOMETER
THERMAL RESPONSE OF A LOSSY TWO-PORTS TO A CORRELATION RADIOMETER Ph. LAUER, J.c. VAN DE VELDE, Y. LEROY* ABSTRACT We consider the output signal of a correlation radiometer connected to an isothermal lossy two-ports, such as lossy microstrip lines and coaxial lines filled with a lossy dielectric.
A COMPUTER CONTROLLED 108-220 GHz SCALAR NETWORK ANALYZER SUITED FOR QUASI OPTICAL MEASUREMENTS
A COMPUTER CONTROLLED OPTICAL MEASUREMENTS 108-220 GHz SCALAR NETWORK ANALYZER SUITED FOR QUASI- G. Braunl, J. Detlefsen2, M. Lange2, B. Neumeyer 2 ABSTRACT A broadband scalar rom-wave network analyzer system is presented which makes use of a new operation principle. With this new concept the complexity and cost of the system is reduced considerably compared to prevailing systems which
A GENERAL ANALYSIS OF ERRORS IN NOISE MEASUREMENT SYSTEMS
A GENERAL ANALYSIS OF ERRORS IN NOISE MEASUREMENTSYSTEMS + -- L. Pradell, A. Comeron, A. Ramirez* ABSTRACT General and approximated expressions are presented which allow the identification and quantification of errors in noise figure measurements that use the Y-factor method. This formulation is a generalization of that in /2/ to all measurement situations (in particular it is not necessary t
REDUCING NON-SYSTEMATIC ERRORS IN MICROSTRIP MEASUREMENTS
REDUCING NON-SYSTEMATIC ERRORS IN MICROSTRIP MEASUREMENTS Kehh E. Jones, Terry E. Burcham, and K. Reed Gleason* ABSTRACT Accuracy of error-corrected network analyzer measurements is often limited by connection repeatability errors to the device under test. An improved coax to microstrip adapteris described which provides -46 dB repeatability to 26.5 GHz. Microstrip calibration standards were deve