We report a 72.8 GHz fully static frequency divider in AIInAs/InGaAs HBT IC technology. The CML divider operates with a 350 mV logic swing at less than OdBm input power up to a maximum clock rate of 63 GHz and requires 8.6 dBm of input power at the maximum clock rate of 72.8GHz. Power dissipation per flip-flop is 55mW with a 3.1V power supply. To our knowledge this is the highest frequency of o...

Introduction. For non-invasive imaging of targeted tissues, cells and biological tissue substitutes in living species the application of fluorinated agents are becoming more popular as F is a relative sensitive nucleus and images can be obtained without disturbing background signals as seen in H MRI. However, compared to H nuclei the number of available F nuclei is usually limited and thus opti...

The paper introduces a novel structure of dual-band filtering Wilkinson power divider (WPD). Its essential component is bandpass filter (BPF), implemented using coupling lines and two T-shaped resonators. BPF incorporated into the to suppress unwanted harmonics within circuit. latter achieved owing wide stopband filter. designed WPD can third in both channels with high levels attenuation. opera...

The design of modified Wilkinson power divider is done by dividing Quarter wavelength transmission line into two, in-between that complex isolation component and compensation capacitor is added. Complex isolation component provides physical separation and electrical isolation between two output ports. It consist of parallel or series RLC circuit is chosen to realize. To get the widest bandwidth...

A novel compact ultra-wideband (UWB) in-phase multilayer slotline power divider with high isolation is presented as a complement in slotline power divider field. The new structure proposed in this paper overcomes the shortcoming that power divider based on slotline almost cannot obtain high isolation between output ports. Based on the equivalent-circuit of microstrip-to-slotline transition and ...

This paper presents a broadband high operating frequency divide-by-2 frequency divider. This divider uses sourcecoupled logic (SCL) with two static loading master-slave D latches which achieves high input operating frequency, high input sensitivity and low power dissipation. This divider can work from 8GHz~ 27GHz and the input power is -40dBm@18GHz. The chip area is 735μm×480μm with only 4.6mW ...

An ultra-wideband (UWB) power divider is designed in this paper. The UWB performance of this power divider is obtained by using a tapered microstrip line that consists of exponential and elliptic sections. The coarse grained parallel micro-genetic algorithm (PMGA) and CST Microwave Studio are combined to achieve an automated parallel design process. The method is applied to optimize the UWB pow...

─ A novel ultra-wideband (UWB) out-ofphase four-way power divider is presented. To achieve a division over a large frequency range, Tjunctions formed by slotlines and microstrip lines are utilized. Based on the transmission-line equivalent-circuit method, we derive the design equations of the proposed power divider. Furthermore, all measured results are in good agreement with the predicted desi...

Filter plays an important role in communication systems. It is an electronic device that allows signal in certain frequency ranges to go through. In other words, filter helps remove all the unwanted frequency components in a signal. Generally, there are four types of filters: lowpass filter, highpass filter, bandpass filter and bandstop filter. Two filters have been proposed in my project. The ...