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A circularly polarized element on a rectangular waveguide has generally small reflection It consists of orthogonal two slot antennas excited by 90-degree phase

Abstract—A V-band single-layer low-loss slot-array antenna is presented in this paper Radiating slots are backed by coaxial  Multiple slots act as a directive array antenna and can emit a narrow fan-shaped beam of microwaves They are used in standard laboratory microwave sources used

slot dog house megaways In this paper, a slot array antenna with ultra-wideband low-scattering characteristic is proposed Covered by a MEPC-based metasurface, this antenna can achieve for details 1 Arrays of slots in waveguide We are able to calculate the radiation pattern for an array of dipoles as