Abstract: An antenna structure comprises a substrate, a first antenna unit and a second antenna unit. The substrate comprises a first surface and a second surface opposing the first surface. The first antenna unit is disposed on the first surface, and comprises at least a first slot with a wider inside and narrower outside at the edge of the first antenna unit. The second antenna unit is disposed on the second surface, and is connected to the first antenna unit through a hole in the substrate. The radius of the at least one first slot is one-fourth the wavelength of the central frequency of the antenna structure.

Abstract: A calibration device, capable of calibrating a gain of a radiometer, includes an actuator and a micro-electromechanical-system (MEMS) unit. The actuator receives a calibration signal outputted from a control unit. The MEMS unit is coupled to the actuator, in which the actuator enables the MEMS unit to shield an antenna of the radiometer according to the calibration signal, such that the radiometer generates an environmental signal according to an equivalent radiant temperature received from the MEMS unit, and the control unit calibrates the gain of the radiometer according to the environmental signal.

Abstract: An imaging system is provided, including a detection unit and a scan unit. The detection unit senses radiation of a target area. The scan unit directs the radiation to the detection unit, in which the scanning unit scans the target area N times at a constant speed within a scan period, such that each of the pixels of the target area is scanned N times by the scan unit, thereby the detection unit generates N sub-detection values for each of the pixels and adds the N sub-detection values up to generate a detection value for each of the pixels.

Abstract: A zero bias power detector comprising a zero bias diode and an output boost circuit is provided. The output boost circuit comprises a zero bias transistor. The zero bias diode is not biased but outputs a rectifying signal according to a wireless signal. The zero bias transistor, not biased but coupled to the zero bias diode, is used for enhancing the rectifying signal.

Abstract: A calibration device, capable of calibrating a gain of a radiometer, includes an actuator and a micro-electromechanical-system (MEMS) unit. The actuator receives a calibration signal outputted from a control unit. The MEMS unit is coupled to the actuator, in which the actuator enables the MEMS unit to shield an antenna of the radiometer according to the calibration signal, such that the radiometer generates an environmental signal according to an equivalent radiant temperature received from the MEMS unit, and the control unit calibrates the gain of the radiometer according to the environmental signal.

Abstract: An imaging system is provided, including a detection unit and a scan unit. The detection unit senses radiation of a target area. The scan unit directs the radiation to the detection unit, in which the scanning unit scans the target area N times at a constant speed within a scan period, such that each of the pixels of the target area is scanned N times by the scan unit, thereby the detection unit generates N sub-detection values for each of the pixels and adds the N sub-detection values up to generate a detection value for each of the pixels.

Abstract: An antenna structure comprises a substrate, a first antenna unit and a second antenna unit. The substrate comprises a first surface and a second surface opposing the first surface. The first antenna unit is disposed on the first surface, and comprises at least a first slot with a wider inside and narrower outside at the edge of the first antenna unit. The second antenna unit is disposed on the second surface, and is connected to the first antenna unit through a hole in the substrate. The radius of the at least one first slot is one-fourth the wavelength of the central frequency of the antenna structure.

Abstract: A zero bias power detector comprising a zero bias diode and an output boost circuit is provided. The output boost circuit comprises a zero bias transistor. The zero bias diode is not biased but outputs a rectifying signal according to a wireless signal. The zero bias transistor, not biased but coupled to the zero bias diode, is used for enhancing the rectifying signal.

Abstract: An exemplary example of the present disclosure proposes an electromagnetic conductor reflecting plate including a perfect electronic conductor and at least two artificial magnetic conductors, wherein the each of the artificial magnetic conductor is disposed on arbitrary one side of the perfect electronic conductor, and a boundary between the perfect electronic conductor and each of the artificial magnetic conductor forms a virtual radiation unit. In addition, an exemplary example of the present disclosure further proposes an antenna array including an antenna and the electromagnetic conductor reflecting plate, wherein the antenna is disposed on the electromagnetic conductor reflecting plate.

Abstract: An exemplary example of the present disclosure proposes an electromagnetic conductor reflecting plate including a perfect electronic conductor and at least two artificial magnetic conductors, wherein the each of the artificial magnetic conductor is disposed on arbitrary one side of the perfect electronic conductor, and a boundary between the perfect electronic conductor and each of the artificial magnetic conductor forms a virtual radiation unit. In addition, an exemplary example of the present disclosure further proposes an antenna array including an antenna and the electromagnetic conductor reflecting plate, wherein the antenna is disposed on the electromagnetic conductor reflecting plate.

Abstract: A transparent layer of a LED device and the method for growing the same are disclosed in this present invention. This present invention provides an improved liquid phase epitaxy (LPE) process for growing a transparent layer of a LED device. In the above-mentioned LPE process, an improved supersaturated solution is utilized to overcome the shortcomings in the prior art, wherein the supersaturated solution comprises antimony and/or indium as a solvent. Furthermore, a metallic zinc and/or magnesium dopant is added into the supersaturated solution to optimize the characters of the transparent layer. Therefore, this invention can provide a more efficient method for growing a transparent layer of a LED device, and the quality of the above-mentioned transparent layer can thereby be improved.

Abstract: A transparent layer of a LED device and the method for growing the same are disclosed in this present invention. This present invention provides an improved liquid phase epitaxy (LPE) process for growing a transparent layer of a LED device. In the above-mentioned LPE process, an improved supersaturated solution is utilized to overcome the shortcomings in the prior art, wherein the supersaturated solution comprises antimony and/or indium as a solvent. Furthermore, a metallic zinc and/or magnesium dopant is added into the supersaturated solution to optimize the characters of the transparent layer. Therefore, this invention can provide a more efficient method for growing a transparent layer of a LED device, and the quality of the above-mentioned transparent layer can thereby be improved.

Abstract: A transparent layer of a LED device and the method for growing the same are disclosed in this present invention. This present invention provides an improved liquid phase epitaxy (LPE) process for growing a transparent layer of a LED device. In the above-mentioned LPE process, an improved supersaturated solution is utilized to overcome the shortcomings in the prior art, wherein the supersaturated solution comprises antimony and/or indium as a solvent. Furthermore, a metallic zinc and/or magnesium dopant is added into the supersaturated solution to optimize the characters of the transparent layer. Therefore, this invention can provide a more efficient method for growing a transparent layer of a LED device, and the quality of the above-mentioned transparent layer can thereby be improved.

Abstract: A system and method is provided for adjusting the performance of a display by adjusting a gray ramp to look like a neutral gray ramp, finding the white points of the display, and obtaining nonlinearity reference values for different colors each through adjusting the brightness of two pictures until the pictures disappear in background. The system and method according to the present invention requires no extra instruments or devices, and provides instructions on the display for easy operation with mouse or any input devices, thereby can be used by users without specialized knowledge to provide performance best fit users' requirements and application environment.