Projecting feed element - In a dish antenna, the incoming signals are received by the dish which then 'reflects' the signal into a central 'feed horn'.
Elfen borthi ymestynnol – Mewn antena sydd ar ffurf dysgl, bydd y signal sy'n cyrraedd yn cael ei dderbyn gan y ddysgl a fydd yna'n adlewyrchu'r signal i mewn i gorn porthi canolog.