Millimeter-Wave Integrated Side-Fire Leaky-Wave Antenna and Its Application as a Spectrum Analyzer

An analog, low-profile and shielded spectrum analyzer is proposed for operation at mm-wave frequencies around the 60 GHz band based on a novel side-fire Leaky-Wave Antenna (LWA) configuration. The periodic LWA systematically developed from conventional 3-port waveguide T-junction which modified to unit cell with an internal matching mechanism suppress stop-band enable broadside radiation symmetry considerations. resulting antenna radiates in plane of antenna, whereby leakage power be either allowed radiate free-space or kept confined inside PPW structure. structure thus can completely useful as analog broadband using Substrate Integrated Waveguide (SIW) Technology. Furthermore, convex demonstrated focus radiated beams near-field make entire system compact. integrated experimentally between 59 - 66 providing 1 frequency resolution. simple mathematical model consisting array line sources efficiently beam-scanning characteristics curved