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In order to make the best use of the data produced by the KOMPSAT-5 (K5) Synthetic Aperture Radar (SAR), there is the need to perform a continuous process of calibration during the operational lifetime of the system, based on data acquired over targets of known characteristics with supporting data provided by the instrument itself. The main aim of the Radiometric Calibration process is to relate the...
The purpose of this paper is to introduce a new resonant frequency reconfigurable antenna for wideband wireless communications. The proposed antenna is composed of a rectangular microstrip antenna, a partial ground plane, and a microstrip line connected to the partial ground to enable frequency reconfigurability. We present a preliminary design that includes antenna simulations and their comparison...
The characterization of a quantum-dot mode-locked laser (QDMLL) integrated patch antenna pattern is discussed. The repetition rate of a 4.1-mm-long QDMLL is 10 GHz. Improvement of the radiation pattern results from using a matching network between the laser diode and the proposed antenna. When an antenna is matched to a quantum-dot mode-locked laser, the radiation intensity at φ = 0° and θ = 0° is...
In this paper, a wearable antenna for wireless local area network (WLAN: IEEE 802. 11a, n −5.725 GHz ~ 5.825 GHz) band applications using a stacked square ring patch element is proposed. It consists of a micro strip line with indirect feeding method and a stacked square ring patch. It is designed on a flexible printed circuit board (PCB). The proposed antenna shows good characteristics such as a WLAN...
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