In this review article, a stage-convertible RF power amplifier designed with a 0.18-m RF CMOS process is described. A method to implement a low-power matching network is an essential technology for the stage-convertible power amplifier. Various low-power matching networks with distributed active transformers as an output power combiner are compared in terms of the amounts of undesired coupling...

We introduce a new model – the Filter-Combiner model – for memoryless synchronous stream ciphers. The new model combines the best features of the classical models for memoryless synchronous stream ciphers – the Nonlinear-Combiner model and the Nonlinear-Filter model. In particular, we show that the Filter-Combiner model provides key length optimal resistance to correlation attacks and eliminate...

This paper investigates the problem of hybrid precoder and combiner design for multiple-input multiple-output (MIMO) orthogonal frequency division multiplexing (OFDM) systems operating in millimeter-wave (mmWave) bands. We propose a novel iterative scheme to design the codebook-based analog precoder and combiner in forward and reverse channels. During each iteration, we apply compressive sensin...

A combiner is a construction formed out of two hash functions that is secure if one of the underlying functions is. Conventional combiners are known not to support short outputs: if the hash functions have n-bit outputs the combiner should have at least almost 2n bits of output in order to be robust for collision resistance (Pietrzak, CRYPTO 2008). Mittelbach (ACNS 2013) introduced a relaxed se...

A novel 180◦ hybrid is proposed, based on a modified Gysel power combiner, using phase shifter and ground bridge for the difference output. Also the Defected Microstrip Structure has been used to increase the hybrid’s phase matching. All steps of the design are simulated using HFSS 11 and the final design is validated by the fabrication. It has good results between 7 GHz to 10 GHz and can be us...

An adaptive equalizer is implemented for display port 1.1a standard with 0.13μm CMOS technology. Overall frequency response of the channel is flattened using high pass filter with current combiner. The adaptation block controls the amount of compensation by comparing the portion between high-frequency and low-frequency components. The fabricated chip consumes 11mW of power from 1.2V supply volt...

The Marchand balun has larger bandwidth than other types of combiners and has been used extensively since its introduction. The Marchand balun has also been extensively used in planar systems in both broadside-coupled and edged-coupled configurations. This paper describes the design and development of two microstrip, folded, edge-coupled Marchand baluns for use as anti-phase power combiner. The...