A Compact Cavity-Based Leaky-Wave Antenna in a Low Temperature Co-Fired Ceramic Process With Improved Performance

An approach for improving the gain of leaky-wave antenna (LWA) is presented in this paper. Embedding cavities structure leads to improvement. To validate proposed method, it was implemented on a half-mode substrate integrated waveguide (HMSIW) LWA. The HMSIW LWA realized low temperature co-fired ceramic (LTCC) achieve compact structure. key novelty improvement by using embedded without increasing size. Applying novel design method results measured peak 7.6 dBi. Tapering aperture about 6 dB reduction sidelobe level (SLL) upper hemisphere as well. impedance matching frequency bandwidth ranges from 28.3 29 GHz that falls within 5G mm-wave bands. length, width, and thickness are 40 mm, 16 1 respectively. compactness, medium gain, loss make suitable candidate wireless devices. A good agreement between simulated observed.