Simultaneous phase and amplitude control using triple stub topology and its implementation using rf mems technology

Date

2009-9-15

Author

Demir, Şimşek
Akın, Tayfun

Metadata

Show full item record

This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Item Usage Stats

253
views

0
downloads

This invention relates to techniques for controlling the amplitude and the insertion phase of an input signal in RF applications. More particularly, this invention relates to phase shifters, vector modulators, and attenuators employing both semi-conductor and RF microelectromechanical systems (MEMS) technologies.

URI

https://worldwide.espacenet.com/publicationDetails/originalDocument?FT=D&date=20110324&DB=&locale=en_EP&CC=WO&NR=2011034511A1&KC=A1&ND=4
https://hdl.handle.net/11511/70171

Collections

Department of Electrical and Electronics Engineering, Patent / Utility Model

Suggestions

OpenMETU
Core

Simultaneous phase and amplitude control using triple stub topology and its implementation using rf mems technology Demir, Şimşek; Akın, Tayfun (EPO, 2012-8-02) This invention relates to techniques for controlling the amplitude and the insertion phase of an input signal in RF applications. More particularly, this invention relates to phase shifters, vector modulators, and attenuators employing both semi-conductor and RF microelectromechanical systems (MEMS) technologies.
Triple stub circuit topology as simultaneous insertion phase, amplitude and impedance control circuit for phased array applications Unlu, M.; Demir, Şimşek; Akın, Tayfun (Institution of Engineering and Technology (IET), 2012-10-23) This study shows that the well-known triple stub circuit topology can also be used for controlling the insertion phase and amplitude of a given signal simultaneously, as well as preserving its impedance transformation ability. The triple stub circuit topology, which is nothing but an extension of the conventional double stub loaded-line phase shifter, results in one more degree of freedom to its solution when it is solved for its insertion phase. This additional degree of freedom not only brings the impedan...
Broadband analogue predistortion using a distortion generator based on two-stage RF mixer topology Nesimoglu, Tayfun (2018-01-01) An analogue predistorter using a distortion generator based on a two-stage radio frequency mixer topology is presented. The proposed distortion generator achieves fundamental signal cancellation without using a signal cancellation loop or a resonant circuit, thus it generates an error signal that predominantly consists of unwanted intermodulation distortion (IMD). Measurements are performed using multi-tones, WLAN- and Terrestrial Trunked Radio (TETRA)-modulated signals. Distortion generator provides high l...
Frequency tunable microstrip patch antenna using RF MEMS technology Erdıl, Emre; Topallı, Kagan; Unlu, Mehmet; Aydın Çivi, Hatice Özlem; Akın, Tayfun (2007-04-01) A novel reconfigurable microstrip patch antenna is presented that is monolithically integrated with RF microelectromechanical systems (MEMS) capacitors for tuning the resonant frequency. Reconfigurability of the operating frequency of the microstrip patch antenna is achieved by loading it with a coplanar waveguide (CPW) stub on which variable MEMS capacitors are placed periodically. MEMS capacitors are implemented with surface micromachining technology, where a 1-mu m thick aluminum structural layer is plac...
Adaptive control of DC link current in current source converter based STATCOM for improving its power losses Karaduman, Ferdi; Ermiş, Muammer; Bilgin, Hazım Faruk; Department of Electrical and Electronics Engineering (2012) In conventional three-phase PWM (Pulse Width Modulation) current source converter based STATCOM (Static Synchronous Compensator) applications, DC link current is kept constant at a predefined value and the reactive power of STATCOM is controlled by varying modulation index. This control strategy causes unnecessary power losses especially when the reactive power of STATCOM is low. For this purpose, in order to reduce the active power drawn by STATCOM, the modulation index can be maximized by adjusting DC lin...

Citation Formats

Ş. Demir and T. Akın, “Simultaneous phase and amplitude control using triple stub topology and its implementation using rf mems technology,” 00, 2009.