Title :
An Efficient High Power RF Dummy-Load
Author :
Panahi, Mohammad Ali ; AbdollahRamezani, Sajjad ; Ebrahimzadeh Ardakani, Gholamreza ; Safian, Reza
Author_Institution :
Electr. & Comput. Eng. Dept., Isfahan Univ. of Technol., Isfahan, Iran
Abstract :
An efficient radio frequency dummy-load structure is designed with Al2O3 ceramic as quarter-wave separation window. The coolant fluid is tap water that rotates in a well designed path between input and output cooling system channels. This dummy load is designed and tested for five kilo watt average input RF power with very low input reflection coefficient (S11 ≤ -32.1 dB) and 8% bandwidth at center frequency of 500 MHz. With a higher rate of water flow (Q) this dummy-load with total length of 1115 mm will be able to dissipate higher input RF power.
Keywords :
UHF devices; aluminium compounds; coolants; cooling; load (electric); water; Al2O3; center frequency; ceramic; coolant fluid; cooling system channel; frequency 500 MHz; high power RF dummy-load; power 5 kW; quarter-wave separation window; radio frequency dummy-load; reflection coefficient; tap water; water flow; Bandwidth; Cooling; Fasteners; Impedance; Radio frequency; Rectangular waveguides; Dummy-load; high power matched load; water load;
Journal_Title :
Microwave and Wireless Components Letters, IEEE
DOI :
10.1109/LMWC.2015.2421824
