A compact high power S-band dual frequency, dual polarised feed

Microwave conical horn antenna with dual circular polarization-Close-form design equations

“…A CP horn can be realized with a single feed using dielectric septum, L‐shaped feed, crossed rectangular horn, or metal septum . The dielectric septum inside a waveguide makes the waveguide section longer .…”

“…Dual CP horns were realized using a sloped or stepped metal septum . The sloped metal septum was introduced by Young with poor AR bandwidth and interport isolation.…”

“…A similar development was also reported in ref. . Chen explored the stepped septum in a square waveguide.…”

“…A CP horn can be realized with a single feed using dielectric septum, 1,2 L-shaped feed, 3,4 crossed rectangular horn, 5,6 or metal septum. [7][8][9][10][11][12][13][14][15] The dielectric septum inside a waveguide makes the waveguide section longer. 1 Cascaded dielectric septums were conceived by Huang.…”

“…Dual CP horns were realized using a sloped or stepped metal septum. [7][8][9][10][11][12][13][14][15] The sloped metal septum was introduced by Young 7 with poor AR bandwidth and interport isolation. A similar development was also reported in ref.…”