Table 2 Best S21 and total SIR when the Rx position for a fixed lT is moved slightly to (x0, y0).

From: Multiplexed Cassegrain Reflector Antenna for Simultaneous Generation of Three Orbital Angular Momentum (OAM) Modes

Tx

Compensated Rx at 18 [GHz]

( x0, y0)

S 21

l R  = 0

l R  = +1

l R  = −1

[ mm ]

lT = 0

0

−17.8

−17

(−12, −24)

lT = +1

−18.8

0

−19

(0, −24)

lT = −1

−31

−23.3

0

(−12, −12)

Total SIR

18.6

16.8

14.9

–

  1. The other parameters are the same as those in Table 1.
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