This paper proposes a broadband single-ended line-to-waveguide transition that covers the 240–300 GHz band. The transition comprises a tapered grounded coplanar waveguide (GCPW) feed line. inserted from the narrow wall of the waveguide exciting a modified V-shaped patch located at the center of the waveguide. Broadband operation is achieved via multiple resonances of the modifi... https://missouriquiltcoes.shop/product-category/fabric-pencils/