Agilent Technologies Option H48 Multiport Test Set Z5623A Specifications Page 169

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Page 61
安捷倫科技高頻元件量測研討會
Feb.23, 2006
Long (Aspect Ratio) Device, 3.5 inch x 1 mm cable, Test Comparison
-1.4
-1.2
-1.0
-0.8
-0.6
-0.4
-0.2
0.0
0.0E+00 2.0E+01 4.0E+01 6.0E+01 8.0E+01 1.0E+02
Frequency in GHz
Magnitude (dB)
Unknown Thru Flush Thru
Unknown Thru and Flush Thru Compared
Page 62
安捷倫科技高頻元件量測研討會
Feb.23, 2006
Unknown Thru For Different Waveguide Bands
Watch out for these potential problems:
1. Non-overlapping waveguide bands
2. Attenuation near cutoff may be too high for thru calibration
3. Higher-order modes
(longer adapters better attenuate undesired modes)
Higher cutoff frequency
Long enough?
Band X Band Y
Tapered or
stepped adapter
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