Substrate integrated waveguide unequal power divider with adjustable dividing ratio

Mohammadi, P.
Demir, Şimşek
An unequal power divider with substrate integrated waveguide technology has been designed. This structure is compact in size and has the capacity to develop to the n-port unequal power divider. Its output powers ratio is also adjustable. The output powers can be easily change by varying the width of the output ports. The design procedure has been done analytically. Then a two-way unequal SIW power divider is designed. Simulation results of the proposed structure shows that return loss is below than10dB from 9GHz to 11 GHz. Transitions show that there is approximately 2 dB difference between output ports from 9.2GHz to 10.4 GHz.
Journal of Electrical Engineering


Low loss substrate integrated waveguide n-way power divider
Mohammadi, Pejman; Demir, Şimşek; Department of Electrical and Electronics Engineering (2012)
Substrate Integrated Waveguide (SIW) technology has been used in designing and fabricating SIW n-way power dividers. In this thesis employing this technology three-port and five-port SIW power dividers are designed and fabricated. These structures are compact in size and the design procedure can be expanded into n-port power dividers. These structures are used with microstrip transition parts however measurement of S-parameters of the main structure are required for comparison. This is carried out with a spe...
K band substrate integrated waveguide power dividers /
Kiriş, Orçun; Aydın Çivi, Hatice Özlem; Department of Electrical and Electronics Engineering (2014)
In this thesis, various K band power divider structures are developed using the substrate integrated waveguide (SIW) technology. In the design and production of the 1 x 2 Y and T - Junction power dividers known as the conventional power divider types, good agreements are observed between measured and simulated S11 results. Also, the differences between simulated and measured S21 results are approximately 0.4 – 0.8 dB at the operating frequency. In addition to these, 1 x 4 dividers obtained by successive add...
X-band RF switch implementation in substrate integrated waveguide
Erdöl, Tuncay; Demir, Şimşek; Department of Electrical and Electronics Engineering (2012)
An RF switch in substrate integrated waveguide (SIW) technology for X-band is designed and demonstrated. Design is based on embedding shunt pin diodes of the switch in an evanescent mode waveguide filter. At reverse bias, pin diodes formed a part of filter's capacitances. Thus switch also functions as a filter when it is in “on” state. At forward bias of diodes, capacitances of the filter are short circuited to obtain a good isolation. The same circuit structure is used to design a tunable filter and an RF ...
Multi-layer substrate integrated wave-guide E-plane power divider
Mohammadi, P.; Demir, Şimşek (2012-07-30)
A new multilayer power divider with Substrate Integrated Waveguide (SIW) technology is proposed. In this work, two-way and four-way power divider realizations by two-layer and three-layer SIW, respectively, are presented. Considering the small size of the structure, extension of this method to n-way power dividers and antenna feed networks are possible, and it has the potential for integration of compact multi-layer SIW circuits. Due to the lack of a multiport counterpart of the two-port thru-reflect-line (...
Active clamped ZVS forward converter with soft-switched synchronous rectifier for maximum efficiency operation
Acik, A; Cadirci, I (1998-05-22)
An active-clamped, zero-voltage switched forward converter equipped with a soft-switched synchronous rectifier is designed and implemented for some low output voltage applications where maximized efficiency is of utmost importance. The converter efficiency is maximized due to soft-switching of the main, active clamp and the synchronous rectifier MOSFET switches. Experimental results are presented for a converter with a de input voltage of 48V, an output voltage of 5V and a de electronic load up to 10A. The ...
Citation Formats
P. Mohammadi and Ş. Demir, “Substrate integrated waveguide unequal power divider with adjustable dividing ratio,” Journal of Electrical Engineering, vol. 14, no. 2, pp. 168–172, 2014, Accessed: 00, 2022. [Online]. Available: