Compact harmonic tuner system with rotating probes
Abstract:
A compact harmonic tuner system uses a two-carriage harmonic slide-screw impedance tuner employs, single and dual frequency band metallic disc probes travelling along and rotating diametrically inside the same slabline, which therefore is only one half, instead of full, the wavelength long at the minimum frequency of operation. Using disc probes allows probe control operation without high precision vertical axes, as well as high resolution in the area where the gap between center conductor and probe is small (high GAMMA), a smooth increase of proximity between probe and center conductor and the possibility to compensate for the negative phase slope at higher GAMMA, native to traditional slide screw tuners using vertically moving square probes (slugs).
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