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International Journal of Antennas and Propagation
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International Journal of Antennas and Propagation
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2011
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Article
/
Fig 2
/
Research Article
Terahertz Harmonic Operation of Microwave Fresnel Zone Plate Lens and Antenna: Frequency Filtering and Space Resolution Properties
Figure 2
Harmonic-action FZP lens at (a) 3rd harmonic frequency
𝑓
3
and (b) 5th harmonic frequency
𝑓
5
.