Mitsubishi Electric Corporation (TOKYO:6503) has announced that it has developed a slotted waveguide array antenna made of injection-molded resin which have been demonstrated to outperform conventional patch array antenna in side-lobe characteristics, cross-polarization
characteristics and electric power efficiency, as well as offer reduced weight and cost, the company said.
Improvements include reduced element height, lower cross-polarization
, high power handling, and elimination of costly radio frequency connectors.
Microwave equipment offers split-mount platform for DM/Hybrid/Packet/Route microwave transmission, equipped with cross-polarization
interference cancellation, and Ethernet frame header compression technologies.
The horizontal spacing between the arrays inside the radome and the arrangement of the antenna elements are optimized to minimize port-to-port isolation, cross-polarization
levels, and the impact of the adjacent array on the co-polarization patterns of each port contributed to uncorrelated channels.
The antenna features an integrated ortho-mode transducer (OMT) that provides high port isolation and cross-polarization
cancellation and a broadband scalar horn that provides low sidelobe levels.
8 shows the measured 2-D radiation patterns in Azmith plane for co-polarization (Co-pol) and cross-polarization
(X-pol) gain components of the two types of antennas.
 reported a bi-layered chiral MM and demonstrated to achieve cross-polarization
conversion with an efficiency of over 90% for both y- and x-polarized waves.
It is proven that cross-polarization
facilitates wind speed retrieval and improves the accuracy of the results, especially with respect to high wind speeds.
In this paper, we proposed several metalenses based on our designed cross-polarization
resonator to meet those requirements mentioned above, by arranging the position and orientation of resonators on the metasurface.
The conventional probe-fed linearly polarized antenna, comprising a metallic rectangular patch printed on top of a grounded planar dielectric layer, is certainly the most popular microstrip radiator , but at the cost of high levels of cross-polarization
in the H plane, as recently revisited .
Further details can be obtained from CPMAS experiments performed at two different cross-polarization