An active RFIC X-band phase shifter is implemented using IHP SiGe HBT 0.25 μm SGB25V technology with an improved vector sum method. The chip is formed by a three way Wilkinson power divider, three phase delays for 0-120-240 degrees, three similar RFIC LNAs and a final three way Wilkinson power combiner on the same chip and occupies an area of 4x1.8 mm2. The circuit provides both phase and ampli...

A new configuration of a pseudo-correlation type radiometer is proposed for microwave biomedical application, such as diabetic foot neuropathy. The approach well its simulated performance are thoroughly assessed using commercial off-the-shelf components and custom designed subsystems. We configured receiver, centred at 3.5 GHz, to validate the proposal, comparing response with measured alternat...

A high accurate and low-voltage analog CMOS current divider which operates with a single power supply voltage is designed in 0.18µm CMOS standard technology. The proposed divider uses a differential amplifier and transistor in triode region in order to perform the division. The proposed divider is modeled with neural network while TLBO algorithm is used to optimize it. The proposed optimiza...

A high accurate and low-voltage analog CMOS current divider which operates with a single power supply voltage is designed in 0.18µm CMOS standard technology. The proposed divider uses a differential amplifier and transistor in triode region in order to perform the division. The proposed divider is modeled with neural network while TLBO algorithm is used to optimize it. The proposed optimiza...

In this study, we describe the design and fabrication of an N-way calibration line for active electronically scanned array radar. The designed consisted open-ended probe a Wilkinson power divider. It was to calibrate by measuring amplitude phase transmit/receive path. addition, signals from antenna module could be transmitted assembly using A multilayer printed circuit board (PCB) used miniatur...

In this paper, a high-efficiency GaN Doherty power amplifier (DPA) for 5G applications in the N78 sub-6 GHz band is introduced. The theoretical analysis of matching networks peak and carrier transistors presented, with focus on impact unequal splitting both recommendation post-harmonic suppression network. proposed design features an Wilkinson divider at input network output, which are crucial ...