Omnidirectional-dual polarized antenna for wireless indoor applications at millimeter waves

This paper introduces a new way of building omnidirectional-dual polarized antenna with a coplanar waveguide (CPW) feed line on two layers for the EHF band around a center frequency of 38 GHz. The antenna structure developed combines the advantages of CPW with the advantages of cross-slots coupled back to back patch antenna. The proposed antenna configurations are able to demonstrate broad bandwidth characteristics, compactness, dual polarization capability with a single feed line, and have been proven to work well in the mm-waves region. The target system is a microcellular ATM LAN with transport bit rates of up to 160 Mb/s per microcell. Finally, the design is straightforward to implement in MMIC in order to reduce the development cost, planning its use as building block for the fast emerging wireless LAN and indoor systems.