The various architectures of transceivers for current standards are firstly compared. Different
possibilities to achieve multi-standard transceivers are also recalled and compared. We …

In this study, two different voltage mode frequency agile filters employing voltage
differencing trans-conductance amplifier (VDTA) are designed for encrypted …

A new family of second-order filters is introduced. When an external voltage amplifier is
added to a second-order filter cell (passive or active), the characteristic frequency of the …

This paper proposes a new method to increase the quality factor of the shadow bandpass
filter. The proposed circuit topology is simple, with the use of conventional biquad cell along …

This paper presents frequency agile filter based on current difference transconductance
amplifier (CDTA). The agile filters used in this work provide high agilty, tunability and quality …

This paper presents frequency agile filters based on current difference transconductance
amplifier (CDTA) and voltage difference transconductance amplifier (VDTA). The proposed …

The theory of shadow filters, a new family of second-order filters recently introduced, is
extended to class n filters, where n is a positive integer. It is shown that their centre …

The various ways to implement multistandard transceivers are first recalled. It is shown that
ease of realization and flexibility are not compatible. All the multistandard transceivers …

The paper proposes the topology and implementation of the shadow bandpass filter. The
main advantage of this work is that the bandpass filter possesses the distinctively high …

A new architecture of the shadow bandpass filters with the quality factor improvement is
proposed. The presented idea employs external amplifiers cooperating with the classical …