Wideband quadrature hybrid coupler using microstrip to slot transition with multilayer technology

• Main Authors: Mohamed Ghazali, Siti Nor Ain, Seman, Norhudah, A. Rahim, Mohamad Kamal, Abdul Rahim, Sharul Kamal
• Format: Article
• Published: 2013
• Subjects: TK Electrical engineering. Electronics Nuclear engineering
• Online Access: http://eprints.utm.my/id/eprint/40823/

This paper presents the planar design of three-section quadrature hybrid coupler for frequency operation of 2 to 6 GHz. This coupler offers a tight coupling of 3 dB and measured return loss better than 13 dB which occupies the size of 50 mm × 20 mm excluding the 50 ? SMA ports. The proposed quadratu...