OPTICALLY CONTROLLED MILLIMETER RANGE SWITCH FOR STRUCTURES BASED ON WAVEGUIDE WITH PIN WALLS ON BASIS OF PRINTED BOARD Russian patent published in 2018 - IPC H01P1/15 

FIELD: manufacturing technology.

SUBSTANCE: use for waveguides with pin walls, implemented in printed circuit boards. Summary of the invention consists in that the optically controlled switch comprises a printed circuit board comprising an upper and a lower conductive layer and a dielectric layer therebetween, the waveguide walls formed by two rows of transition metallized holes electrically connected to the upper and lower conductive layers of the printed circuit board, the adjacent holes in the row being spaced apart from each other at a distance of less than one tenth of the wavelength for the electromagnetic wave, which is fed into the switch, the distance between the rows being more than half the working wavelength that propagates in the waveguide with allowance for dielectric filling, first and second ports of the waveguide for input and output of electromagnetic energy located at the ends of the waveguide between its walls, shunting the metallized hole, electrically connected to the lower layer of the printed circuit board and separated from the top layer of the printed circuit board by a dielectric gap, a photoconductive semiconductor element disposed on the upper layer of the printed circuit board and electrically connected to the shunting hole and to the top layer of the printed circuit board, the photoconductive element has at least two states: a state of a dielectric with a small intrinsic electrical conductivity (off state) in the absence of a controlling light flux and the state of the conductor with a relatively high electrical conductivity (the switched on state) with a controlling light flux.

EFFECT: providing the possibility of simplifying the design, providing an improved power supply/control circuit from the RF path, reduced losses at high frequencies, increased permissible output power and simplified integration into the built-in printed circuit board waveguide.

16 cl, 17 dwg, 1 tbl