Design and Simulation of the Compact Power Dividers with Arbitrary Power Division Ratio and Filtering Response Using Substrate Integrated Waveguide Structure Based on Composite Right-Left Handed Structures

Document Type : Original Article

Authors

1 Department of Electrical Engineering, Vali-e-Asr University of Rafsanjan, Rafsanjan, Iran

2 Department of Electrical Engineering, Graduate university of advanced technology, Kerman, Iran

Abstract

In this paper, three miniaturized filtering power dividers (FPDs) with arbitrary power-dividing ratio using the half-mode substrate integrated waveguide (HMSIW) based on the metamaterial concepts are proposed. The operational method of the presented structures is based on the theory of evanescent mode propagation. The meander technique has been employed to reduce the dimension of the conventional complementary split ring resonator (CSRR) unit-cell. In this technique, the meander slots are carved inside all of the interior space of the ring which is called modified complementary split-ring resonator (MCSRR). Accordingly, the length of the slot is increased which leads to an increase in the inductor and capacitor of the proposed structure without occupying the extra space. By means of the MCSRR unit cell, three miniaturized equal/unequal FPDs with power division ratios of 1:1, 1:4 and 1:8 are fabricated and tested. Additionally, to further size reduction of the proposed FPDs, the HMSIW platforms are used which, a nearly 50% reduction in the size can be achieved without changing the performance of the SIW structure. All of the proposed HMSIW FPDs are designed at 2.4 GHz which are suitable for WLAN applications. For demonstration of the applied procedures in the proposed HMSIW FPDs, the suggested equal/unequal HMSIW FPDs have been fabricated and measured. A reasonable agreement between simulated and measured results has been achieved. The entire size of the suggested equal/unequal HMSIW FPDs is about 0.07 λg × 0.07 λg.

Keywords

Main Subjects

TABRIZ JOURNAL OF ELECTRICAL ENGINEERING

Articles in Press, Corrected Proof
Available Online from 28 September 2024

Files

Share

How to cite

Statistics