  This paper presents novel designs, analysis, and performance of 4-pole and
8-pole microwave and millimeter-wave (MMW) waveguide filters for operation at X
and Y frequency bands. The waveguide filters have been designed and analyzed
based on the RF mode matching and coupled resonators design techniques
employing layered technology. Thorough waveguide filters working at X-band and
Y-band have been designed, analyzed, fabricated, and also tested along with the
analysis of the output characteristics. Accurate designs of RF waveguides along
with their filters based on the E-plane filter concept have been carried out
with the ability of fitting into the layered technology in high frequency
production techniques. The filters demonstrate the appropriateness in order to
develop high-performance well-established designs for systems that are intended
for the multi-layer microwave, millimeter- and sub-millimeter-waves devices and
systems; with the potential employment in radar, satellite, and radio astronomy
applications.
