A single stage quadrature hybrid coupler with enhanced flat balance over a wide bandwidth is presented in this article. The present coupler is realized by replacing the transmission line sections of ...

A quadrature bandpass DeltaSigma ADC for a multistandard TV tuner achieves a total dynamic range of 90 dB over an 8.5-MHz passband centered on 44 MHz while consuming 375 mW. The fourth-order ...

When I replied, “America,” he smiled, left and returned with a small U.S. flag in a stand and put it on the table. I was surprised and asked him why he had put a flag on my table.