Within the last 20 years, digital wireless communications has got an indispensable part of
our daily lives. In 2010, the number of mobile cellular subscriptions worldwide reached five …

In this paper, an overview of different RF transmitter architectures, based on the RF-DAC
implementation is given. The evolution of different types of architectures is displayed with the …

A radio transceiver has been designed and built for a W-CDMA experimental system
operating at 2GHz. The radio is an RF front-end for mobile terminals. The radio provides the …

A Fourier-Domain digital-to-analogue converter (FDDAC) based transmitter is presented for
the first time. The proposed topology generates a coherent bandwidth in the GHz range …

Due to the severe cost pressure of consumer electronics, a migration to an advanced
nanoscale CMOS processes, which is primarily developed for fast and low-power digital …

Wireless applications would be less expensive, more flexible, and more robust if they had
more digital and less analog circuitry. The problem is implementing digital signal processing …

This work presents the first digital-IF based RF-DAC transmitter. This approach uses a digital
IF signal to up-convert the baseband data into the IF-band before mixing it with the LO signal …

Wireless bands and services are proliferating across the world. Every six months, it seems, a
new use for wireless appears, often leading to a new standard. Manufacturers of mobile …

An ultra-broadband I/Q RF-DAC digital wireless transmitter architecture is proposed for 5G
terminals and base stations. Broadband 1-32-GHz and tuned 20-32-GHz 2× 6-bit versions of …

The FOMA Third-Generation mobile phone service first started out in the 2 GHz band in
October 2001. Later, in order to expand the service area efficiently in rural areas, services …