BROWSE
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Journal Article
The Design of Broadband Probe for Efficient Near Field Measurements
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- Authors
- Jung-Ick Moon, Jae-Hoon Yun
- Issue Date
- 2007-09
- Citation
- IEEE Antennas and Wireless Propagation Letters, v.6, pp.440-443
- ISSN
- 1536-1225
- Publisher
- IEEE
- Language
- English
- Type
- Journal Article
- Abstract
- In this letter, we designed and fabricated a broadband probe with a double-ridged waveguide for broadband near-field measurements. An exponentially tapered ridge in the rectangular waveguide and a novel waveguide transition were used for broadband impedance matching and suppression of higher order modes. The probe has broadband characteristics and its measured impedance bandwidth is approximately 123% (4.17:1) in the range 12.0-50 GHz for standing wave ratios (SWR) < 3.0. The peak radiation gain range and nominal radar cross-section (RCS) are 5.7-14.3 dBi and -30 dBsm, respectively. The performance of this probe was verified using the measured results and is in good agreement with the simulated results. © 2007 IEEE.
- KSP Keywords
- Impedance Bandwidth, Measured impedance, Radar Cross Section(RCS), Rectangular Waveguide, Standing Wave, broadband impedance matching, gain range, higher-order mode, near-field measurement, ridged waveguide, waveguide transition