naa a22 4500 510797075 CHVBK 20180411083340.0 cr unu---uuuuu 180411e20131201xx s 000 0 eng 10.1007/s11277-013-1280-z doi (NATIONALLICENCE)springer-10.1007/s11277-013-1280-z Design of Wideband Rectangular-Shaped Coupler with Virtual Short Stubs for Wireless Communication Applications [Elektronische Daten] [Siti Ghazali, Norhudah Seman, Mohamad Rahim, Sharul Rahim, Khairul Yusof] This article presents the design of the sectional rectangular-shaped directional couplers with tight coupling of 3-dB over frequency of 2-6GHz. The designed coupler consists of two substrates and one common ground plane between the substrate layers. It also formed by two conducting strips with virtual short stubs are placed to the middle section at the top and bottom layer, which coupled through three-section rectangular slots at the ground plane. The effect of these additional stubs in the design is studied and observed. The design and analysis are performed with the use of full-wave electromagnetic simulation software package, CST Microwave Studio. This designed coupler has been fabricated and its wideband performance is verified. Springer Science+Business Media New York, 2013 Directional coupler nationallicence Multi-section nationallicence Wideband nationallicence Ghazali Siti Wireless Communication Centre (WCC), Universiti Teknologi Malaysia (UTM), 81310, Johor Bahru, Johor, Malaysia aut Seman Norhudah Wireless Communication Centre (WCC), Universiti Teknologi Malaysia (UTM), 81310, Johor Bahru, Johor, Malaysia aut Rahim Mohamad Faculty of Electrical Engineering, Universiti Teknologi Malaysia (UTM), 8310, Johor Bahru, Johor, Malaysia aut Rahim Sharul Wireless Communication Centre (WCC), Universiti Teknologi Malaysia (UTM), 81310, Johor Bahru, Johor, Malaysia aut Yusof Khairul Wireless Communication Centre (WCC), Universiti Teknologi Malaysia (UTM), 81310, Johor Bahru, Johor, Malaysia aut Wireless Personal Communications Springer US; http://www.springer-ny.com 73/3(2013-12-01), 1331-1342 0929-6212 73:3<1331 2013 73 11277 https://doi.org/10.1007/s11277-013-1280-z text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s11277-013-1280-z text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Ghazali Siti Wireless Communication Centre (WCC), Universiti Teknologi Malaysia (UTM), 81310, Johor Bahru, Johor, Malaysia aut NATIONALLICENCE 700 1- Seman Norhudah Wireless Communication Centre (WCC), Universiti Teknologi Malaysia (UTM), 81310, Johor Bahru, Johor, Malaysia aut NATIONALLICENCE 700 1- Rahim Mohamad Faculty of Electrical Engineering, Universiti Teknologi Malaysia (UTM), 8310, Johor Bahru, Johor, Malaysia aut NATIONALLICENCE 700 1- Rahim Sharul Wireless Communication Centre (WCC), Universiti Teknologi Malaysia (UTM), 81310, Johor Bahru, Johor, Malaysia aut NATIONALLICENCE 700 1- Yusof Khairul Wireless Communication Centre (WCC), Universiti Teknologi Malaysia (UTM), 81310, Johor Bahru, Johor, Malaysia aut NATIONALLICENCE 773 0- Wireless Personal Communications Springer US; http://www.springer-ny.com 73/3(2013-12-01), 1331-1342 0929-6212 73:3<1331 2013 73 11277 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer