Frequency-reconfigurable waveguide aperture antenna based on dual horizontal PIN diode

The invention discloses a frequency-reconfigurable waveguide aperture antenna based on dual horizontal PIN diodes and belongs to the field of antennae. The frequency-reconfigurable waveguide aperture antenna based on the dual horizontal PIN diodes mainly comprises a servo circuit, a programmable voltage source, a rectangular waveguide and a dual horizontal PIN diode, wherein the servo circuit is used for carrying out programming control on the programmable voltage source, so that the programmable voltage source outputs multiple voltages meeting programming requirements; the rectangular waveguide adopts a coaxial cable for feeding, 8-64 gaps are cut from a wide wall of the waveguide, and one dual horizontal PIN diode is arranged at each gap; and multiple voltages output by the programmable voltage source are connected with the dual horizontal PIN diodes, and on and off of different parts of the dual horizontal PIN diodes are controlled, so that the length, width and offset distance of each gap of the waveguide are controlled by virtue of the way, and the programmable control frequency-reconfigurable waveguide aperture antenna is realized. By applying the invention, the programmable frequency-reconfigurable waveguide aperture antenna is realized.