The paper presents a theorem showing that in the componentconnection model framework a large scale interconnected system is aggre-gable if and only if one of its components is aggregable.

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a novel low noise trans-impedance amplifier is proposed using low cost 0.18 µm cmos technology. a resistive-capacitive feedback is used to extend the bandwidth of the amplifier. as the structure is inductor less, it is suitable for low cost integrated optical interconnects. in this paper improved particle swarm optimization have applied to determine optimal trans-resistance and noise of propose...

a digital look-up table adaptive predistortion technique using a six-port receiver for power amplifier linearization is presented. the system is designed in ka-band for a dvb-s2 satellite link. we use a six-port receiver at the linearizationloop in place of classic heterodyne receivers. the six-port receiver is implemented by the use of passive microwavecircuits and detector diodes. this approa...

Determining if audio speaker limitations are violated can be challenging when using Class-D amplifiers. To obtain valid results, it is necessary to carefully analyze and interpret the switching behavior of the output signals . Filter-free Class-D amplifiers further complicate measurement because they do not require an output filter and the speaker can be connected directly to the amplifier outp...