Ando, "Iteration-free design of waveguide slot
array with cavities," IEEE Trans.
This provides a new way of designing compact and low-profile patch antenna elements, planar arrays, waveguide slot
arrays, and other compact microwave components.
Girka, "Emission of azimuthal surface waves from narrow waveguide slot
," Soviet Journal of Communications Technology and Electronics, Vol.
In this article, the designs of two different types of compact planar magic tee junctions -- a planar magic tee junction (PMTJ1) using a collinear transverse waveguide slot coupler and a planar magic tee junction (PMTJ2) with a longitudinal/transverse slot coupled difference port -- have been accomplished based on MoM analysis and FEM-based CAD high frequency structure simulator software (HFSS).
For non-standard, similar or dissimilar waveguide slot couplers, the scattering parameters are modified to satisfy the power balance condition and a proper normalisation has been accomplished in terms of two waveguide dimensions and wave impedances to make the scattering matrix symmetrical.
Itoh, "Miniaturized substrate integrated waveguide slot
antennas based on negative order resonance," IEEE Trans.
Indeed the concept could be realized in waveguide to create a very low loss array, as shown in Figure 11, which shows series resonant waveguide slot
arrays coupled by small holes to traveling waveguide feeds underneath.
8, was measured in two orthogonal orientations by rotating the sample by 90 [degrees] in the waveguide slot
This difference can likely be attributed to the fact that the computations based on waveguide theory utilized values of power measured by a wattmeter having a manufacturer specified accuracy of 5% and that the waveguide theory computations did not take into account field disturbances caused by the probe launch and waveguide slots
A half view of the feed waveguide slots
is shown in Figure 4.
The waveguide slots
are simple to machine and the ridges can be readily formed with a cosine taper or in steps.