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This paper showcases the work done to create an alternative surface impedance transmission line implemented using a 3D tetrahedral meshing frequency eigenmode solver. The work was performed based on a complementary asymmetric split ring (CASR) unit cell to identify its resonance characteristic and relevant dispersion diagram at 5.9 GHz. By using this CASR singularly into a guided transmission line,...
This research paper utilizes a 3D tetrahedral meshing frequency solver to simulate the electromagnetic effect of circular split asymmetric ring (CSAR) patterned onto a conventional microwave laminate. Behavior of the incident wave was first conducted using a bare flat metal laminate and then compared with a modified tip of CSAR surface. Comparison made between simulation and measured samples working...
Design of a fully integrated power amplifier (PA) with distributed active transformer (DAT) architecture is introduced in this paper. PA achieves high efficiency and high power performance necessary for long range internet of thing (IoT) wireless communication systems. The amplifier is implemented in a 0.18gm SiGe BiCMOS technology with 3.3 V supply voltage and achieves a peak output power of +32dBm...
The work presents a design of single stage integrated low noise amplifier using negative feedback and inductive source degeneration with DMS technique as the notch filter. Implementation of Super-low noise InGaAs HEMT MGF4937AM transistor which covers from 3.1–10.6 GHz for LNA. Due to interference from IEEE 802.11 WLAN at 5–6 GHz in UWB standard, a notch filter is used to attenuate the undesired frequency...
This paper describes the design and implementation of the 4-stage Villard multiplier for RF energy harvesting. Each stage is a combination of two HSMS 2850 Schottky diodes and two capacitors for each stage. For ambient energy harvesting, the incident power is extremely small, thus an efficient rectifier is needed. The designed rectifier with the matching circuit is a good candidate since it is able...
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