An axially symmetric radial waveguide power divider, which utilizes a specific Cycloidal-Like tapered transition between central coaxial launcher and waveguide, is presented in this paper. In order to broad the operation band, change of impedance investigated, an analytic expression for shape obtained. A simple electromagnetic modeling stepped matching network developed, its characteristics are...

In slab continuous-casting machines, the quality of finished product mainly depends on hydrodynamic behavior molten steel in cavity mold, where submerged entry nozzle is central element. Recently, a nontraditional design was reported, solid barrier attached to inner bottom wall divides its internal volume, particularly around outlet ports. The named flow divider. this work, effect divider analy...

Frequency divider circuit is the basic in digital logic circuit. The function to divide or drop frequency of high signal get lower for a given by division. On Multisim software platform, using different design methods, as foundation middle scale integration chip 74LS161, even divider, odd and (N- 0.5) respectively. Each principle method illustrated simulated. results showed that correct conform...

This paper presents a low power 2.4-GHz fully integrated 1 MHz resolution IEEE 802.15.4 frequency synthesizer designed using 0.18um CMOS technology. An integer-N fully programmable divider employs a novel Truesingle-phase-clock (TSPC) 47/48 prescaler and a 6 bit P and S counters to provide the 1 MHz output with nearly 45% duty cycle. The PLL uses a series quadrature voltage controlled oscillato...

Study deals with implementations of fixed-point division modules based on different algorithms on basis of Xilinx FPGAs. We show that our implementation of the nonrestoring algorithm is significantly faster and smaller than the 32-bit IP Core “Pipelined Divider” from Xilinx. For example, the speed of the 32-bit designed module is almost 245 MHz vs. 193 MHz from Xilinx divider. Moreover, high-sp...

The speed of a divider based on a digit-recurrence algorithm depends mainly on the latency of the quotient digit generation function. In this paper we present an analytical approach that extends the theory developed for standard SRT division and permits to implement division schemes where a simpler function speculates the quotient digit. This leads to division units with shorter cycle time and ...

Today uncertainties of a phase difference of two sinusoidal signals is commonly about 10 μrad for non coherent measurements and signal amplitudes up to several volts. Increasing voltage range of a phase meter requires special considerations. The construction of a special voltage divider intended for precise phase difference measurement is presented in this paper. The uncertainty contribution of...

This paper discussed the circuit level design and simulation of fractional-N frequency divider, a circuit block used mainly in frequency synthesizer. The design was done in schematic level. A low power 0.5 micron CMOS technology called CMOSIS5 used for modeling the circuit devices. The frequency divider was design for 900 MHz GSM standard mobile communication application. For the simulation, ci...

A CMOS current-mode companding multiplier/divider composed of three compact logarithm circuits and one compact exponential circuit is proposed. Approaches for constructing the logarithm circuits and the exponential circuit are based on second-order Taylor series approximations. By gathering the three logarithm results and passing through the exponential circuit, we can obtain the result of zp(x...

It is proposed that the application of defected ground structures (DGS) and electromagnetic bandgap (EBG) reduce the phase velocity, increase effective permittivity of microstrips and reduce the effective the wavelength which eventually lead to the reduction of overall length of Wilkinson power dividers. Furthermore, the adjacent strip lines may approach each other, which cause coupling problem...