Design Consideration of High Gain Microstrip Antenna Arrays for Telemetry Tracking and Command System of Geostationary Satellites

Corporate‐fed advanced microstrip arrays with improved cross‐polar isolation: Design and engineering using DGS‐integration techniques

“…[1][2][3][4][5][6][7][8][9][10] The microstrip-feed has well-known advantages for its compactness, low-profile, and low-cost; but its ohmic loss, radiation losses from junctions and discontinuities limit the achievable gain and cross-polar (XP) isolations. [10][11][12][13][14][15] XP radiations in microstrip-fed array and its control is the primary focus of this investigation. Techniques with complex/dual-layer feeds with increased structural volume, such as dog-bone shaped aperture coupling, 16 cavity-backing, [17][18] substrate-integrated waveguide-fed coupling, [19][20] differential feeding, 21 were explored for controlling XP radiations in microstrip-fed arrays.…”

“…While the properties of individual element, mode of excitation, and physical arrangements are the determining factors in designing an array, feed network is an important point of consideration based on power handling and tolerable loss 1–10 . The microstrip‐feed has well‐known advantages for its compactness, low‐profile, and low‐cost; but its ohmic loss, radiation losses from junctions and discontinuities limit the achievable gain and cross‐polar (XP) isolations 10–15 . XP radiations in microstrip‐fed array and its control is the primary focus of this investigation.…”