Abstract
the lens plays important role in the dielectric resonator antenna (DRA) for increasing the bandwidth and directivity. Also, the liquids like water and ethanol can be noticed for developing the DRA for THz application. In addition, the liquids are interesting because the level and quality of material can be used for designing reconfigurable antenna. For the THz spectrum, the liquids can be combined with antenna and microwave devices by Microfluidic technology. In this paper, the suggested antenna is used to enhance the various factors of the antenna and the filling ratio of the channels is noticed to provide reconfigurable antenna. The slot antenna with split ring resonator and meandered feed is used as the basic antenna to provide high Q-factor. Moreover, the results show that this novel structure can be used as sensor for material detecting which is used to recognize various types of liquids by determining the sensitivity of the sensor in the range of 0.5 to 1 THz. The proposed sensor is examined for pure water, ethanol and gasoline based on the 2 nd order model of Debye.
Highlights
Various methods have been suggested to design reconfigurable antenna for microwave and THz application [12]
The proposed sensor is examined for pure water, ethanol and gasoline based on the 2nd order model of Debye
The slot antenna is considered as the basic antenna which is excited by meandered feed line with the total length and width of 410 and 10 μm
Summary
Various methods have been suggested to design reconfigurable antenna for microwave and THz application [12]. Some methods are physical, such as using micro-switches [5] and other types of these antennas are based on materials such as the use of ferrites [6], graphene [7] and liquid crystals [8]. The slot antenna is developed for THz application and liquid dielectric load based on microfluidic is added to the basic antenna by placing the micro channel over the antenna surface. This antenna shows reconfigurable characteristic by changing the volume of liquids in micro channels. It can be used for material recognition and in this study, the water, ethanol and gasoline are tested
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