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This paper proposed a high frequency spurious suppression 60GHz transceiver, which is composed by single module. It works in the 59–64GHz RF frequency with two 2.16GHz bandwidth IF communication channels in the 8.64GHz. The cavity band pass filters are added in the output of the TX and the LO link to realize the high sideband reject and low spurious. This kind of capacity-loading filter can realize...
A novel design of miniature inverted-F antenna (IFA) with no empty space is proposed for indoor energy scavenging of Wi-Fi signals. The antenna configuration was designed based on planar inverted-F antenna (PIFA) with meandered line structure for antenna size miniaturization. The proposed antenna has dimensions of only 8 (L)× 3 (W) × 4 (H) mm to be integrated into low power miniaturized devices. Moreover,...
In this paper, we present a planar inverted-F antenna (PIFA) that effectively radiates at three frequency bands to extract power from ambient radio waves for energy scavenging. The proposed PIFA has its operation in the wireless communication bands of GSM 900, DCS 1800 and Wi-Fi 2.4GHz, yet it only occupies a small printed area of 20×40 mm2 on the system circuit board. Such small size with appreciable...
In this paper, a multi-port RFID tag antenna is integrated with an I2C-RFID chip along with a microcontroller unit (MCU) and a sensor to implement a low-cost wireless temperature sensor using a commercial RFID reader. The key feature of this design is a two-port patch antenna with energy-harvesting circuitry at its second port, which can acquire the supply voltage needed for the operation of RFID...
With a promising future for generation of electricity to power electronics, RF energy scavenging has become a matter of significant interest in recent years. In this paper, a small-size printed planar inverted-F antenna (PIFA) is designed dedicated for compact mobile RF energy scavenging system to extract power from ambient RF energy. The proposed PIFA has its working frequencies at about 900 MHz...
This research work demonstrated in this paper is part of a larger project that aims to design high efficiency miniaturized RF energy scavenging system. In this paper, a broadband differential antenna is designed for a full-wave RF energy scavenging system. Simulation results demonstrate that the proposed antenna shows a wide bandwidth of 3.48 GHz based on S parameters < −10 dB, covering most of...
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