The working frequencies of telecommunication systems are rapidly increasing and sub-THz applications will soon be required. In that context, the current article presents synthesis a tunable ring filter. considered filter introduces new degree freedom allows to meet targeted specifications in terms central frequency bandwidth. Thanks capacitor displacement, equivalent characteristic impedance ca...

This paper presents a voltage mode cascadable single active element tunable first-order all-pass filter with a single passive component. The active element used to realise the filter is a new building block termed as differential difference dual-X current conveyor with a buffered output (DD-DXCCII). The filter is thus realized with the help of a DD-DXCCII, a capacitor, and a MOS transistor. By ...

A fully differential biquadratic filter section for data acquisition in smart sensor microsystems is proposed. The architecture of this biquadratic filter section is built upon a resonant fully differential topology based on a new Fully Differential Multiple Differences Amplifier cell (FDMDA). This biquadratic low-pass Butterworth filter has two differential inputs that can be algebraically sum...

Reconfigurable microwave filters make microwave transceivers adaptable to multiple bands of operation using a single filter, which is highly desirable in today’s communications with evermore growing wireless applications. Tunable filters can replace the necessity of switching between several filters to have more than one filter response by introducing tuning elements embedded into a filter topo...

In this paper, a new circuit topology for realizing first-order all-pass filter based on a grounding capacitance multiplier is presented. This strategy presents a good solution to resolve the problems occurred by the integration of high capacitance value. And he give the possibly to realize a tuneable capacity by simple action on their bias current. Implementations of these topologies based on ...

This paper presents a new fabrication technology and the associated design parameters for realizing compact and widely-tunable cavity filters with a high unloaded quality factor ( Qu) maintained throughout the analog tuning range. This all-silicon technology has been successfully employed to demonstrate tunable resonators in mobile form factors in the C, X, Ku, and K bands with simultaneous hig...

Two grounded voltage controlled resistors operating in saturation region are proposed. The first proposed grounded voltage controlled resistor employs 8 metal-oxide semiconductor (MOS) transistors and the second one uses 10 MOS transistors. The proposed GVCRs having only one control voltage do not need any bias currents and voltages constructed with extra elements. One of the main properties of...

In the past few years, several satisfying various objectives and designs of reconfigurable integrated microwave filter and antenna have been proposed for wireless communication systems. Several designs are new concepts and techniques, whereas others are inspired from previous works. The improvement concepts of these designs can be reviewed from this compilation of studies. This paper begins wit...

A low voltage low power operational transconductance amplifier (OTA) based on a bulk driven cell and its application to implement a tunable Gm-C filter is presented. The linearity of the OTA is improved by attenuation and source degeneration techniques. The attenuation technique is implemented by bulk driven cell which is used for low supply voltage circuits. The OTA is designed to operate with...

A second order voltage mode tunable universal filter is presented. The voltage mode filter is based on dual output second generation current controlled current conveyor (DOCCCII). The filter is capable of realizing high pass (HP), low pass (LP), band pass (BP), notch pass (NP) and all pass (AP) responses in voltage mode (VM). The filter employs only two capacitors and hence enjoys minimum compo...