This paper presents the design of a novel dual-band unequal Wilkinson power divider. The proposed power divider can operate at arbitrary two frequencies without reactive components. The design and analysis of power divider are presented. The structure of the power divider and the formulas used to determine the design parameters have been given. Closed-form design equations are derived based on ...

A fully integrated dual-mode frequency synthesizer for GSM and Wideband CDMA (WCDMA) is presented. The synthesizer is designed to maximize hardware sharing between the two modes by applying fractional frequency synthesis to GSM mode and integer frequency synthesis to WCDMA mode. The shared components include phase frequency detector (PFD), charge pump (CP), loop filter, integer frequency divide...

Measurement accuracy is an important performance indicator for high-voltage direct current (HVDC) voltage dividers. The temperature rise effect a HVDC divider’s internal resistance has adverse on measurement accuracy. In this paper, by building solid model of DC divider, the characteristic and error caused in divider were theoretically simulated. We found that with increase height working time,...

In this paper, a new analytical design technique for three-section wideband Wilkinson power divider is presented. The proposed utilizes the dual-frequency behavior of commensurate transmission lines even-mode analysis and contributes set completely rigorous equations odd-mode analysis. Measurement fabricated prototype utilizing shows an excellent return-loss (>16 dB), insertion loss (<3.3...

In the phase locked loop (PLL) frequency synthesizer which is used in a higher frequency region, the prescaler method is employed in order to increase the operating frequency of the programmable divider. However, since the fixed divider whose division ratio is same as the prescaler is installed at the following stage of the reference divider, the reference frequency is decreased and the perform...

In this paper, the divider circuit for PLL based Frequency Synthesizer has been designed. In the divider circuit, three types of counters have been used namely Prescaler, Main Counter and Swallow Counter. The Divider circuit is a two modulus Divider and it can be used to divide by any value in the range 4635 to 4650 as per the requirement. It uses a two modulus Prescaler and it has two modes of...

In this paper, a 42GHz frequency synthesizer fabricated with 0.13μm SiGe BiCMOS technology is presented, which consists of an integer-N fourth-order type-II phase locked loop (PLL) with a LC tank VCO and a frequency doubler. The core PLL has three-stage current mode logic (CML) and five stage true single phase clock (TSPC) logic in the frequency divider. Meanwhile, a novel balanced common-base ...