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- Title
Design and implementation of compact tri- and quad-band SIW power divider using modified circular complementary split-ring resonators.
- Authors
Duraisamy, Tharani; Kamakshy, Selvajyothi; Sholampettai Subramanian, Karthikeyan; Barik, Rusan Kumar; Cheng, Qingsha S.
- Abstract
This paper presents a miniaturized tri- and quad-band power divider (PD)based on substrate integrated waveguide (SIW). By adopting different types of modified circular complementary split-ring resonators on the top surface of SIW, multiple passbands are generated propagating below the SIW cut-off frequency. The working principle is based on evanescent mode propagation that decreases the operating frequency of the PD and helps in the miniaturization of the proposed structure. The operating frequency of the proposed PD can be individually controlled by changing the dimensions of the resonator. To verify the proposed concept, a tri-band and a quad-band PD exhibiting 3 dB equal power division at 2.41/3.46/4.65 GHz and 2.42/3.78/4.74/5.8 GHz are designed using the full-wave simulator, validated through circuit model, fabricated and experimentally verified. The measured results agree well with the simulations. The proposed PDs have good performance in terms of reasonable insertion loss, isolation, minimum amplitude and phase imbalance, smaller footprint, easy fabrication and integration. The size of the fabricated prototype is 18.3 mm × 8.4 mm, which corresponds to 0.205λ g × 0.094λ g , λ g being the guided wavelength at the first operating frequency.
- Subjects
POWER dividers; RESONATORS; INSERTION loss (Telecommunication); DESIGN
- Publication
International Journal of Microwave & Wireless Technologies, 2022, Vol 14, Issue 10, p1241
- ISSN
1759-0787
- Publication type
Article
- DOI
10.1017/S1759078721001720