Fonnulas based on transmission-line, cauiiy, and magnetic-wall models to determine the resonant fie quencks of u rectungular microstrip antenna element haue been studied and their ualidiiy assessed. Their cariations were experimentally r;erifred by analyzing u set of newly designed untennu elements
Closed-form expressions for the resonant frequency of rectangular microstrip antenna elements with thick substrates
β Scribed by Mehmet Kara
- Publisher
- John Wiley and Sons
- Year
- 1996
- Tongue
- English
- Weight
- 550 KB
- Volume
- 12
- Category
- Article
- ISSN
- 0895-2477
No coin nor oath required. For personal study only.
β¦ Synopsis
tially. However, steeples of tuning is little at closer distances between the ring and anode block. The reason of this phenomena is arising of capacitive component of conductance carry in with ring to circuit. Because it moves resonant frequency to opposite direction, the summary variety on little distances is too little, and in some cases the frequency starts to move in the opposite direction. The same circumstance can lead to a narrowing of the tuning range by ring eccentricity.
CONCLUSION
The performed experiments demonstrate that it is possible to create a tunable pulse magnetron for frequencies as high as 140 GHz with characteristics acceptable for practical applications. The remaining problems are related to the design of a precision tuning mechanism.
ACKNOWLEDGMENT
The authors thank Dr. D. M. Vavriv for encouragement and aid in preparing the article.
REFERENCES
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