Otto-von-Guericke-Universität Magdeburg

 
 
 
 
 
 
 
 

2008

[1]

A. Balalem, J. Machac and A. S. Omar

Microstrip-CPW Bandpass Filter for Antenna Application

Microwave and Optical Technology Letters, Vol. 50, Issu No. 1, January, 2008, pp. 51-55.

[2]

T. J. S. Khanzada, A. R. Ali, and A. S. Omar

A Study of Variable Channel Length for Single Carrier Transmission with Decision Feedback Equalizer

Proc. IEEE Radio & Wireless Symposium, 2008, Orlando, Fl, USA, Jan 2008

[3]

A. S. Omar and A. R. Ali

Adaptive Channel Characterization for Wireless Communications

Proc. IEEE Radio & Wireless Symposium, 2008, Orlando, Fl, USA, Jan 2008, pp. 543-546

[4]

Hai-Wen Liu, Zhiguo Shi, A. Boutejdar, R. H. Knoechel, K. F. Schuenemann

Harmonics suppression of Wilkinson power divider using spurlines with adjustable rejection bands

Microwave and Optical Technology Letters Volume 50, Issue 3, Date: March 2008, pp. 601-604

[5]

A. Boutejdar, A. Elsherbini and A. S. Omar

Improvement of Compactness of Low pass and Band pass Filter Using a Simple Combination of Cross-Defected Ground Structure (DGS) and a Discontinuous Microstrip Line

Proc. German Microwave Conference, GeMiC 2008, Technische Universität Hamburg-Harburg (TUHH), Germany, March 2008

[6]

A. Boutejdar and A. S. Omar

Design of Novel Hairpin-DGS Microstrip Bandpass and Lowpass Filters Using Coupling Matrix Method

Proc. German Microwave Conference, GeMiC 2008, Technische Universität Hamburg-Harburg (TUHH), Germany, March 2008

[7]

A. Balalem, W. Menzel, J. Machac, and A. Omar

A Simple Ultra-Wideband Suspended Stripline Bandpass Filter with Very Wide Stop-band

IEEE Microwave and wireless components letters , Vol. 18, No. 3, pp. 170-172 , March, 2008.

[8]

A. Boutejdar, A. Elsherbini and A. S. Omar

Design of a novel ultra-wide stopband lowpass filter using H-defected ground structure

Microwave and Optical Technology Letters Volume 50, Issue 3, Date: March 2008, pp. 771-775

[9]

A. Boutejdar and A. S. Omar

Transformation of Band-Pass Filter to Low-Pass Filter Using Compensated Microstrip Capacitor and Coupled Hairpin ?/2-DGS-Resonators

2008 IEEE Sarnoff Symposium Nassau Inn in Princeton, NJ, USA April 2008

[10]

A. Boutejdar and A. S. Omar

A New Compact Tunable One-Pole Band-Pass Filter Using a Varactor and Defected Ground Structure Hairpin-Resonator (DGS)

2008 IEEE Sarnoff Symposium Nassau Inn in Princeton, NJ, USA April 2008

[11]

A. Boutejdar, M. Makkey, A. Elsherbini, A. S. Omar

Design of compact stop-band extended microstrip low-pass filters by employing mutual-coupled square-shaped defected ground structures

Microwave and Optical Technology Letters Volume 50, Issue 4, pp. 1107-1111, April 2008

[12]

A. Balalem, A. R. Ali, J. Machac, and A. S. Omar

Compact Bandstop Filters Using an Interdigital DGS Structure

Proceedings of 14th Microwave Techniques COMITE 2008, Prague, Czech Republic, pp. 175-178, April 2008.

[13]

A. Boutejdar, A. Batmanov, J. Machac, E.Burte and A. S. Omar

A New Transformation of Bandpass Filter to Bandstop Filter Using Multilayer-Technique and U-Defected Ground Structure (DGS)

Radioelektronika, 2008. 18th International Conference, Prague, Czech Republic 24-25, April 2008

[14]

Anatoliy Batmanov, Ahmed Boutejdar, Edmund Burte, and A. S. Omar

High-Performance Microwave Coplanar Bandpass and Bandstop Filters on Si Substrates

Radioelektronika, 2008. 18th International Conference, Prague, Czech Republic 24-25 April 2008

[15]

A. Boutejdar, J. Machac, L. Haiwen, and A. S. Omar

Miniaturized Microstrip Lowpass Filter With Wide Stopband Using Suspended Layers and Defected Ground Structure (DGS)

Radioelektronika, 2008. 18th International Conference, Prague, Czech Republic 24-25 April 2008

[16]

T. J. S. Khanzada, A. R. Ali, A. Q. K. Rajput and A. S. Omar

Design and Chronological Survey of Decision Feedback Equalizer for Single Carrier Transmission Compared with OFDM

Proc. International Multitopic Conference, IMTIC '08., Jamshoro, Pakistan 11-12 Apr. 2008

[17]

Tariq J. S. Khanzada, Ali Ramadan Ali, and Abbas S. Omar

The Effect of Coding on OFDM and Single Carrier Transmission with Decision Feedback Equalizer

Proc. CNSR May 2008 conference , Halifax, Nova Scotia, Canada May 2008

[18]

Ahmed Boutejdar, and A. S. Omar

Design , Enwurf, und Realisirung der Microstrip Filter mittels DGS-Methode and Multilayer-Technik

EEEfCOM 2008 Fachmesse - Workshop - Entwicklerforum 28. - 29. Mai 2008

[19]

A. Balalem, W. Kim-Fai, J. Machac, and A. S. Omar

Low-Loss Doubly Metallized CPW Low-Pass Filters with Additional Transmission Zeroes

Microwave and Optical Technology Letters, Vol. 50, No. 5, pp. 1431-1433, May, 2008.

[20]

K. Will, T. Meyer, A.Omar

Low-Cost High-Resolution Handheld VNA using RF Interferometry

Proceedings of the 2008 IEEE MTT-S International Microwave Symposium, IMS-2008 (Atlanta/GA,USA), 2008, pp. 375-378

[21]

A. Balalem, J. Machac, and A. S. Omar

Dual-Band Bandpass Filter Using the Microstrip Square-Loop Dual-Mode Resonator

Microwave and Optical Technology Letters,Vol. 50, No. 6, pp.1567-1570 ,June, 2008.

[22]

Ali. R. Ali, A. Balalem, T. J. Khanzada, J. Machac, and A. S. Omar

Doppler Spread Estimation for OFDM Systems Using Newton Polynomials

Proc. Radioelektronika 2008, Prague, Czech Republic, Jun. 2008

[23]

A. Boutejdar, A. Batmanov, A. Elsherbini, A. S. Omar, and E. Burte

Design of Compact Tunable Band-Pass Filter Using J-Inverter and Quasi-Fractal Defected Ground Structure (DGS)

Proc. EUROEM European Electromagnetic 2008, Lausanne, Switzerland, 21-25 July 2008

[24]

A. Boutejdar, A. Batmanov, A. Elsherbini, A. S. Omar, and E. Burte

A Miniature 3.1-GHz Microstrip Bandpass Filter with A Suppression of Spurious Harmonic Using Multilayer-Technique and Defected Ground Structure Open Loop-Ring (DGS)

Proc. EUROEM European Electromagnetic 2008, Lausanne, Switzerland, 21-25 July 2008

[25]

A. Batmanov, A. Boutejdar, E. Burte and A. S. Omar

New Coplanar Low-Pass Filter Using Defected Ground Structure (DGS)

Proc. EUROEM European Electromagnetic 2008, Lausanne, Switzerland, 21-25 July 2008

[26]

M. Anis, A. Jöstingmeier and A. S. Omar

Application of a SAR Procedure for the Determination of Dielectric Constants in Free Space

Proc. IEEE AP-S International Symposium. Manchester Grand Hyatt, San Diego, USA, July 5-12 2008

[27]

Ahmed Boutejdar, A. K. Verma, Adel Elsherbini and A. S. Omar

Design of Compact Low- pass Filter with With Wide Rejection Band Using Cascaded Arrowhead-DGS and Multilayer- Technique

Proc. IEEE AP-S International Symposium. Manchester Grand Hyatt, San Diego, USA, July 5-12 2008

[28]

Ahmed Boutejdar, A. Batmanov,A. S. Omar and E. P. Burte

A Simple Method to Control the Reject Band of Microstrip Low Pass Filter Using a New Multi-Ring Defected Ground Structures (DGS)

Proc. IEEE AP-S International Symposium. Manchester Grand Hyatt, San Diego, USA, July 5 -12 2008

[29]

Ahmed Boutejdar, A. Batmanov1, E. P. Burte1 and A. S. Omar

A New Compact Tunable Bandpass Filter Using Defected Ground Structure with Active Devices

Proc. IEEE AP-S International Symposium. Manchester Grand Hyatt, San Diego, USA, July 5-12 2008

[30]

A. Boutejdar, A. Elsherbini, W. Ali, S. Fouad, L. Ahmed, and A. S. Omar

Design of Compact Microstrip Lowpass Filters using Coupled Half-Circle Defected Ground Structures (DGSs)

Proc. IEEE AP-S International Symposium. Manchester Grand Hyatt, San Diego, USA, July 5-12 2008

[31]

A. Batmanov, A. Boutejdar, A. S. Omar and E. P. Burte

2D Quasi-Fractal Periodic Defected Ground Structure for Coplanar Waveguide

Proc. IEEE AP-S International Symposium. Manchester Grand Hyatt, San Diego, USA, July 5-12 2008

[32]

B. Panzner, A. Joestingmeier and A. S. Omar

Ka-Band Ultra-Wide-Band GPR for Landmine Detection

12th International Conference on Ground Penetrating Radar, Birmingham, UK, June 16-19 2008

[33]

Ali. R. Ali, T. J. Khanzada, and A. S. Omar

ICI Cancellation for OFDM Systems Using Lagrange Polynomial Approximation

Proc. 13th OFDM workshop, Hamburg, Germany, Aug. 2008, pp. 124-127

[34]

K. Will, T. Meyer, A. S. Omar

Phase-Shifting Interferometry for RF Phase Measurement

U.R.S.I. XXIX General Assembly digest, URSI GA 2008 (Chicago/IL,USA), 2008

[35]

Ali. R. Ali, T. J. Khanzada, and A. S. Omar

Adaptive Guard Interval length for OFDM-Based WLAN Systems in Frequency Selective Channels

Proc. 38th European Microwave conference EUMW 2008, Amsterdam, Netherland, Oct. 2008, pp. 115-118

[36]

M. Li, L. Haiwen, A. Boutejdar, W. Shuxin and F. Tong

Novel Microstrip Bandpass Filter With Slotted Hexagonal Resonators And Capacitive Loading

Proc. 38th European Microwave conference EUMW 2008, Amsterdam, Netherland, Oct. 2008

[37]

Anatoliy Batmanov, Ahmed Boutejdar, Edmund Burte, and Abbas Omar

Miniaturized Coplanar Bandpass/Bandstop Filter Using Meander Serpentine Shape Shunt/Open-Stubs

Proc. 38th European Microwave conference EUMW 2008, Amsterdam, Netherland, Oct. 2008

[38]

Ahmed Boutejdar, Abbas Omar

Transformation of Low-Pass to Band-Pass Filter Using a simple Gap-Capacitive and a New Meander Defected Ground Structure (DGS)

in Proc. MMS 2008 Mediterranean Microwave Symposium Damascus, Syria , 14-16 October, 2008

[39]

Ahmed Boutejdar, Michael Senst, Tariq Khanzada and A. S. Omar

A New Compact 2.4GHz Bandpass Filter Using Direct Coupled Defected Ground Structure (DGS) Hairpin- Resonators

in Proc. MMS 2008 Mediterranean Microwave Symposium Damascus, Syria , 14- 16 October, 2008

[40]

Ali. R. Ali, T. J. Khanzada, and A. S. Omar

Channel Estimation for OFDM Systems in Rapidly Time-Variant Channels Using High Degree Channel Approximation

Proc. 4th WIMOB 2008, Avingon, France, Oct. 2008

[41]

K. Will, and A. S. Omar

Phase Measurement of RF Devices Using Phase-Shifting Interferometry

IEEE Transactions on Microwave Theory and Techniques, Vol. 56, N. 11, November 2008, pp.2642-2647

[42]

Ahmed Boutejdar and A. S. Omar

Design of microstrip bandpass and lowpass filters using coupling matrix method and a new hairpin defected ground structure

Microwave and Optical Technology Letters Volume 50, Issue 11, Date: November 2008, pp. 2898-2901

[43]

B. Panzner, A. Joestingmeier and A. S. Omar

Ka-Band Dielectric Lens Antenna for Resolution Enhancement of a GPR

8th International Symposium on Antennas Propagation and EM Theory, Nov 2-6 2008, Kunming, China

[44]

Tariq J. S. Khanzada, Ali Ramadan Ali, and Abbas S. Omar

Time Difference of Arrival Estimation using Super Resolution Algorithms to Minimize Distance Measurement Error for Indoor Positioning Systems

Proc. IEEE Multitopic Conference, INMIC '08., Karachi, Pakistan, Dec. 2008

[45]

A. Boutejdar, A. Batmanov, A. S. Omar and E. Burte

Design of Compact Low-pass Filter Using Cascaded Arrowhead-DGS and Multilayer-Technique

Proc. Asia Pacific Microwave Conference (APMC) 2008, China, Hong Kong, pp. 1266-1270, December 2008

[46]

A. Boutejdar, A. Batmanov, A. S. Omar and E. Burte

A New Method to Improve the Rejectband of a 5.6 GHz Bandstop Filter Using l/2 Open-Loop Ring Microstrip Resonators

Proc. Asia Pacific Microwave Conference (APMC) 2008, China, Hong Kong, pp. 1275-1378, December 2008

[47]

Ali. R. Ali, A. Balalem, T. J. Khanzada, J. Machac, and A. S. Omar

Adaptive Pilot Distribution for OFDM Systems in Time-Variant Channels

Proc. Asia Pacific Microwave Conference (APMC) 2008, China, Hong Kong, December 2008

[48]

A. Boutejdar, A. Batmanov, E. Burte and A. S. Omar

A Miniature 3.1GHz Microstrip Bandpass Filter with Suppression of Spurious Harmonics Using Multilayer Technique and Defected Ground Structure Open-Loop Ring

Proc. EUROEM European Elektromagnetik Book, Lausanne, Switzerland, December 2008

[49]

A. Batmanov, A. Boutejdar, E. Burte and A. S. Omar

New Coplanar Low-Pass Filter Using Defected Ground Structure (DGS)

Proc. EUROEM European Elektromagnetik Book, Lausanne, Switzerland, December 2008.

[50]

A. Boutejdar A. El-Sherbini and A. S. Omar

Method for Widening the Reject-Band in Lowpass/Bandpass Filters by Employing coupled C-Shaped Defected Ground Structure (DGS)

IET Microwaves, Antennas & Propagation, Vol. 17, No. 12, pp. 1405-1408, December 2008

[51]

A. Boutejdar, A. Batmanov, A. S. Omar and P. Burte

A New Technique for Reducing the Size of Lowpass Filter with Broad Stopband Using Compensated Microstrip Capacitor Combined by Meander Defected Ground Structure (DGS)

Recent Patents on Electrical Engineering journal,Bentham Science Publishers, Volume 1, Number 4, December 2008

Letzte Änderung: 10.07.2012 - Ansprechpartner: Prof. Dr.-Ing. Abbas Omar