A Low Side-lobe Waveguide Antenna Integrated with Solar Cell Using Non-offset Slots

This paper proposes a ridge waveguide antenna integrated with solar cell using non-offset slots. This waveguide antenna has 8 radiation slots, each radiation slot is placed like a straight line on the centerline of the broad side of the waveguide and a metal pin is arranged on one side of the slot in the waveguide to excite electromagnetic wave radiation. Low sidelobe is achieved by adjusting the length of the metal pins. Two rectangle solar cells are arranged on both sides of the slots. The scanning VSWR of the antenna is less than 1.7 at 9.6GHz~9.8GHz, the maximum gain is about 14.45dBi and the side lobe level is less than -25dB. Moreover, the introduction of solar cells has little effect on the antenna performance.