Microwave Theory and Techniques Chapter
Leaky modes have been found on a variety of waveguiding structures. For transmission-line applications, their presence is undesirable since they carry energy away from the structure, thus causing additional loss on the line and interference between circuit elements. Of particular interest for planar transmission-line structures are dominant leaky modes. The term "dominant" implies that the strip current is similar to that of the conventional transverse-electromagnetic (TEM) mode. In this seminar, the dominant leaky-modes for common stripline and microstrip-line structures at millimeter wave (mmW) frequencies: Issues and Solutions will be presented. System analysis, antenna element/array designs (including Leaky Wave Antennas: LWAs), and radiation safety for mmW communication systems, such as 5G for WBAN (Wireless Body Area Network), wireless gigabit Ethernet (60 GHz, 80GHz) for indoor/outdoor (point-to-point), automotive radar (77 GHz) and imaging (94 GHz) systems will also be discussed.