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

Volume

25

Issue

6

fYear

2015

fDate

Jun-15

Firstpage

409

Lastpage

411

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;

fLanguage

English

Journal_Title

Microwave and Wireless Components Letters, IEEE

Publisher

ieee

ISSN

1531-1309

Type

jour

DOI

10.1109/LMWC.2015.2421824

Filename

7104179