M/a -com, Inc.

Anthony Dennis

Walid Khairy Mohamed Ahmed

David Bengtson

Walid Ahmed

Yongwen Yang

Radwan Husseini

Hong Gan

A transmitter comprises a baseband processor, a wideband phase modulator and an amplitude modulated amplifier. A signal is provided through the baseband processor and is converted into polar coordinates, comprised of amplitude and phase components, with the amplitude component being transmitted to the amplitude modulated amplifier. The amplitude modulated amplifier being comprised of independently controllable current sources, and with the phase component being transmitted to the wideband phase modulator, for modulation upon a carrier wave, and subsequent transmission to the amplitude modulated amplifier for amplification according to control imposed by the amplitude component upon the current sources.

Electromagnetic wave transmitter systems, methods and articles of manufacture

A system, apparatus, method and article to emulate a filter using digital elements are described. The apparatus may include a digital-to-analog converter having an impulse response emulator, the impulse response emulator to receive multiple digital signals each having a predetermined waveform, and convert a sequence of bits from each digital signal to a predetermined analog waveform corresponding to the sequence of bits using a lookup table or digital filter. Other embodiments are described and claimed.

Method and apparatus to emulate a filter using digital elements

A system, apparatus, method and article to emulate a filter are described. The apparatus may include a digital-to-analog converter having an impulse response emulator, the impulse response emulator to receive multiple digital signals each having a predetermined waveform, and convert a sequence of bits from each digital signal to a predetermined analog waveform corresponding to the sequence of bits. Other embodiments are described and claimed.

Method and apparatus to emulate a filter

An apparatus including an amplitude mapping circuit for converting at least a portion of an amplitude signal to a binary value and a plurality of amplifiers coupled to the amplitude mapping circuit, such that the binary value is transmitted to at least one of the plurality of amplifiers to specify a gain level of the amplifier. The apparatus may be used in a system where an input wave has been divided into amplitude and frequency components.

Adaptive wideband digital amplifier for linearly modulated signal amplification and transmission

A transceiver and transmitter are shown. A baseband processor receives a signal for transmission. It converts the signal into amplitude and phase polar components. Each component is then processed&#x2014;the phase component through a wideband phase modulator and the amplitude component through a wideband amplitude modulator, and the components are then recombined for further processing or transmission.

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Belle Mead, NJ, United States of America

Anthony Dennis