Ku-Band High-Gain Horn Antenna Array

A high-gain horn antenna array for Ku-band satellite communication. Sixty-four horns, arranged 16 × 4, are quadrature polarized and driven through a feed network. The array covers two bands, at 12.5 GHz and 14.25 GHz, each 500 MHz wide.

I designed the horns and the feed network in CST Microwave Studio. Some parts of the design are on my GitHub.

Antenna designSatellite communication

Elements: 16 × 4 horns
Bands: 12.5 GHz and 14.25 GHz
Bandwidth: 500 MHz per band
Polarization: Quadrature
Design tool: CST Microwave Studio

Front view of the 16 by 4 horn array — **Fig. 1**Front view of the array

64horns in a 16 × 4 grid

12.5 GHzlower band

14.25 GHzupper band

500 MHzbandwidth per band

Feed Network

Behind the horns

A high-gain array only works if every horn receives its share of the signal with the right phase, across both bands. The feed network that distributes the signal sits behind the aperture (Fig. 2). I designed and simulated it together with the horns in CST Microwave Studio.

Side view of the array showing the feed network — **Fig. 2**Side view of the array and its feed network

Antenna array design All research projects · GitHub