Abstract:
Reactor for cancelling the reactances of a circuit by adding to it a conjugate reactance, involving at least one trolley that can be moved along a microstrip and supporting a probe whose penetration can be adjusted by a screw. One of the ends of the microstrip is terminated by a plug specially adapted to receive a transistor electrode.
Abstract:
The device enables a transistor to be removed from a circuit without its connections having to be unsoldered or soldered again, and comprises a middle part bearing the transistor, one of whose electrodes is connected to the ground of the middle part and two lateral flanges fitted with plug sockets for receiving the other two electrodes of the transistor. The middle part and the two flanges can be installed together by means of screws. The two flanges can also be installed without the middle, allowing the invention to be used for making measurements on power amplifiers at frequencies greater than 1 Gc/s.
Abstract:
Hyperfrequency band-cut filter enabling the transmitting of a first lower frequency band and cancelling a second frequency band which is absorbed. It is constituted by a compact assembly comprising two blocks fixed to each other and forming a rectangular wave guide whose upper and lower walls are drilled with slots connected to resonant cavities at the second frequency band, hollowed out in the faces opposite to the faces of the rectangular wave guide and comprising, moreover, two plates which are screwed onto said blocks overlying said cavities.