نوع مقاله : علمی-پژوهشی
نویسندگان
1 گروه مهندسی برق، دانشگاه ولی عصر(عج) رفسنجان، رفسنجان، ایران
2 دانشجوی دکترای مهندسی برق، دانشگاه تحصیلات تکمیلی کرمان، کرمان، ایران
چکیده
کلیدواژهها
موضوعات
عنوان مقاله [English]
نویسندگان [English]
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.
کلیدواژهها [English]
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