Patent ID: 9716483
Date: 2017-07-25
CPC Classifications: H01P,H03H

Claim:
1. A large band impedance tuner having an input (test) port and an output (idle) port comprises a cascade of a high frequency tuner module (HFT) and a low frequency tuner module (LFT), and two single pole double throw (SPDT) RF switches #1 and #2, said RF switches being remotely controlled, each switch having a common port 1 and two secondary ports 2 and 3; each said tuner module having an input port and an output port and a slotted airline (slabline) between the ports and at least one capacitively coupled reflective probe being insertable in the slabline and movable along the axis of the slabline, whereby the slabline of the LFT has wider channel (D), higher diameter (d) of the central conductor and lower cut-off frequency (Fco) than the slabline of the HFT; and whereby the input port of the HFT is the input (test) port of the large band tuner, and whereby the two SPDT switches are inserted as follows: switch #1 is inserted between the output port of the HFT and the input port of the LFT, whereby the output port of the HFT is connected to the common port 1 of switch #1; switch #2 is inserted between the output port of the LFT and the output (idle) port of the large band tuner, whereby the common port 1 of switch #2 is the output (idle) port of the large band tuner.