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In this paper, a new single element wideband cavity backed multi-layer microstrip patch antenna is presented. For this antenna, rectangular patch and circular cavity has been used. This antenna is designed for 79 GHz short range radar applications, and is fabricated with advanced high resolution “Any-Layer” PCB technology. It has a wide bandwidth of 12.44 GHz, which is 15.6% of the center frequency...
In this paper, new wideband cavity backed aperture coupled microstrip antenna is presented for 79 GHz MIMO radar applications. This designs is based on a sub-arrays consisting of two single elements, which have stacked rectangular patch radiators. A microstrip to stripline transition and a series feeding topology is used to feed the elements. The antennas are manufactured by using a new high resolution...
In this paper, a new cavity backed microstrip patch antenna sub-array, which is fabricated in an advanced high resolution multi-layer PCB technology is presented. This sub-array consists of two corporate fed elements. To reduce backside radiation, a microstrip to stripline transition is used for connecting the IC's on the other side of the board. This antenna is designed for 79 GHz radar applications,...
In this paper, a new single element broad band cavity backed multi-layer microstrip patch antenna is presented. This antenna is designed to be used in 79 GHz MIMO radar applications, and is fabricated with advanced high resolution multi-layer PCB technology. It has a wide bandwidth of 11.43 GHz, which is 14.5% of the center frequency. The beam widths in both E and H-planes are very wide, and are 144...
An integrated high dynamic range approach is presented to accurately measure the radiation pattern, the scattering parameters, and the gain of integrated on-wafer antennas operating in the millimeter-wave frequency band. To avoid interconnection problems such as connector mounting, RF probes are used to connect to the antenna. This measurement system is specially designed to avoid scattering and parasitic...
In this paper, we apply a defected ground structure (DGS) to design a compact dual-frequency Wilkinson power divider (WPD). As the necessary area for dual-frequency Wilkinson power divider has a considerable increment toward single frequency WPD, we have to reduce its size especially in lower frequencies. With using dumbbell DGS, both designed operating frequencies are significantly lowered and consequently...
This article suggests a new modeling method of delay dynamics of internet by system identification. It is used for controlling the real time of tele-robotic based on internet. When a single model is used, it needs to adapt to the operating conditions before an appropriate control mechanism can be performed. This article, studies the behavior of multi-model control systems in relation to wave prediction...
In this paper we will analyze and study a solar power plant of a linear parabolic type after introducing it. Monitoring system via the Internet is designed for the plant according to present parameters. Besides studying different dynamics of the Internet as important components we discuss the quality and effectiveness of each Internet parameter in order to explain the Internet behavior. According...
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