Mutual Coupling Reduction of Antennas on a Complex Superstructure

Solution of the antenna placement problem by means of global optimization techniques

“…In the study of Suh, Lee, and Kim genetic algorithm is used for minimization of coupling between two ship board antennas [4]. Rather than a realistic ship model, a smaller and simpler ship model is used in the analyses.…”

A Novel Microstrip Patch Antenna With Reduced Surface Wave Excitation

“…3 to choose suitable pin positions and radii and the corresponding ka for the TM 1 mode. The corresponding relative permittivity ε r of the substrate is computed as ε r = (ka/k 0 a) 2 . Practical values of ε r can be obtained by proper choice of pin parameters r 0 , b and α.…”

“…In addition to their contribution to power loss, surface waves cause undesired coupling between components printed on the same substrate, such as the case in patch antenna arrays [1]. Several attempts have been made recently to reduce such coupling [e.g., [2][3][4][5]. Eventually, excited surface waves will be diffracted at the edges of a finite ground, which causes the radiation pattern to be corrupted and deviate from its desired shape.…”

“…Notable work in this direction is given by Jackson and his team in [9,10]. The patch is modified to become an annular ring [9] with shorted inner surface and outer open surface of radius 'a' given by (2). By adjusting the inner shorted radius, the ring can be made to resonate at the same frequency corresponding to (2).…”

“…The patch is modified to become an annular ring [9] with shorted inner surface and outer open surface of radius 'a' given by (2). By adjusting the inner shorted radius, the ring can be made to resonate at the same frequency corresponding to (2). The short circuit is implemented by inserting a very high number of via pins between the patch and the ground.…”