Experimental assembling and testing bench for metamaterial based multilayered antenna modules

Аuthors

Adzhibekov A. A.^1*, Zhukov A. A.^2**, Alekseev O. A.^1*

1. Joint Stock Company “Russian Space Systems”, JSC “RSS”, 53, Aviamotornaya str., Moscow, 111250, Russia
2. ,

*e-mail: shah-murza@mail.ru
**e-mail: and_zhukov@mail.ru

Abstract

It has been shown recently; that metamaterials (multilayered metal-dielectric structures with unusual electromagnetic properties) can improve radiation characteristics of antenna, for example increase its gain without increasing antennas lateral size. In order to manufacture such multilayered metal-dielectric structures several techniques, based on thick and thin film technologies are used. If creating a microwave multilayered split ring resonator based metamaterial with distance between two layers over 1 mm is necessary, this techniques not always can be used. In this case dielectric layers and films with metal structures must be manufactured separately and then multilayered metamaterial modules must be assembled. In order to assemble these layered structure assembling and testing bench is used. During the assembling process a microwave radiation source with antisymmetric radiation pattern is used for matching each layer. Microwave radiation of the source is transmitted through matched layers and then received by reciever. Ideally matching is perfect if minimum of the signal power at the receiver is achieved. To confirm capability of the bench experimental research was carried out. Test two layered structure and special radio transparent fixture were made, one of the layers being fixed and the other one being movable. Signal power at the receiver dependency of the displacement between layers of the test two layered structure at frequency 27 GHz was measured. Experimetn shows that estimate matching error is approximately 100 mkm. The Designed assembling and testing bench provides technologically efficient assembling and testing metamaterial based multilayered antenna modules with distance between two layers about 1-10 mm and for frequencies range approximately 1-30 GHz and matching error less then 1,5 % of wavelength at operation frequency.

Keywords:

metamaterial, antenna module, split ring resonator, radiation pattern

References

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