## Abstract In order to obtain accurate radiation characteristics of an antenna, it is required to reduce unbalanced current on the surface of the feeding cable. A miniaturized balun of stacked coaxial cavities is presented to show high input impedances at two separate bands. An equivalent circuit
โฆ LIBER โฆ
Dual-frequency balun to decrease influence of RF feed cables in small antenna measurements
โ Scribed by Icheln, C.; Vainikainen, P.
- Book ID
- 125540028
- Publisher
- The Institution of Electrical Engineers
- Year
- 2000
- Tongue
- English
- Weight
- 281 KB
- Volume
- 36
- Category
- Article
- ISSN
- 0013-5194
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Figure 5 Measurement errors in the real and imaginary parts of the permittivity of the PVC with a sample length of L s 120 mm and โฌ L s 0.1 mm From these values, an excellent agreement is observed with those reported previously in the literature, also plotted w x in Figure 4 as reference values 7 .