Staff Members - Benha University
A New Class of Miniature Quadrature Couplers for MICs and MMICs Applications
MICROWAVE AND OPTICAL TECHNOLOGY LETTERS • 2002
Publication Information
Authors
4. A.F.Sheta, A. S. Mohra and S.F. Mahmoud
Keywords
coupler, MMIC, MINIATURE
Journal
MICROWAVE AND OPTICAL TECHNOLOGY LETTERS
Publisher
Not Available
Volume
34
Issue
3
Pages
215-219
publication.type
International
Paper Link
Not Available
Supplementary Materials
Not Available
Abstract
A new class of miniature quadrature couplers suitable for
microwave integrated circuits (MICs) and monolithic microwave integrated
circuits (MMICs) are presented. The proposed couplers have
some advantages compared to conventional types, such as smaller size,
no harmonic response, and wide stop-band characteristics. Two 3-dB
quadrature couplers at two different frequencies, 0.9 and 10 GHz have
been designed and simulated. The coupler designed at 900 MHz has
been fabricated on Duroid substrate with microstrip technology.
Compared to the standard quadrature coupler more than 65% area
savings, has been achieved, and the first higher-order response appears
at 5.8 GHz. The measured results show good agreement with theoretical
prediction.
microwave integrated circuits (MICs) and monolithic microwave integrated
circuits (MMICs) are presented. The proposed couplers have
some advantages compared to conventional types, such as smaller size,
no harmonic response, and wide stop-band characteristics. Two 3-dB
quadrature couplers at two different frequencies, 0.9 and 10 GHz have
been designed and simulated. The coupler designed at 900 MHz has
been fabricated on Duroid substrate with microstrip technology.
Compared to the standard quadrature coupler more than 65% area
savings, has been achieved, and the first higher-order response appears
at 5.8 GHz. The measured results show good agreement with theoretical
prediction.