Resonance-cone focusing in a compensating bilayer of continuous hyperbolic microstrip grids

Siddiqui, Omar; Eleftheriades, George V.
August 2004
Applied Physics Letters;8/16/2004, Vol. 85 Issue 7, p1292
Academic Journal
We propose a periodic structure synthesized by arranging continuous transmission-line segments in a two-dimensional planar grid over a ground plane. The periodic grid exhibits hyperbolic spatial dispersion characteristics, leading to the formation of highly directive beams called “resonance cones.” Simulations and experiments at 10 GHz show negative refraction and frequency-dependent spatial focusing of the resonance cones, when two such grids with compensating phase properties are interfaced to form a bilayer. The proposed structures are deprived of loading elements or vias, thus leading to ease of fabrication and scalability with frequency for applications, such as spatial filters, multiplexers, and demultiplexers.


Related Articles

  • LYGIAGREÄŒIOJI DAUGIALAIDŽIŲ MIKROJUOSTELINIŲ LINIJŲ SINTEZÄ–. Pomarnacki, Raimondas; Krukonis, Audrius // Science: Future of Lithuania;2011, Vol. 3 Issue 1, p104 

    The parallel technique for the synthesis of the multiconductor microstrip lines (MML) is presented in this article. Main parameter of the synthesised MML is characteristic impedance, variable parameters: width of the conductors, space between conductors, the thick of dielectric substrate and its...

  • Detection of short X-ray pulses excited by an atmospheric-pressure discharge of nanosecond duration in air. Aizenshtat, G.; Baksht, E.; Kostyrya, I.; Lelekov, M.; Lomaev, M.; Nadreev, I.; Nam, I.; Rozhnev, M.; Rybka, D.; Ryabkov, S.; Tarasenko, V.; Tolbanov, O.; Tyazhev, A.; Shapoval, L. // Instruments & Experimental Techniques;Sep2007, Vol. 50 Issue 5, p695 

    The X-ray radiation of gas-filled diodes has been studied with the use of a multichannel detection unit based on microstrip GaAs ionizing-radiation detectors. It has been shown that a detector responses to X-ray pulses of subnanosecond duration and allows studies of the characteristics of X rays...

  • A NOVEL DUAL-BAND Π-SHAPED BRANCH-LINE COUPLER WITH STEPPED-IMPEDANCE STUBS. Zheng, N.; Zhou, L.; Yin, W.-Y. // Progress in Electromagnetics Research Letters;Aug2011, Vol. 25, p11 

    A novel compact branch-line coupler operating in two arbitrary frequencies is proposed, analyzed and designed. Stepped-impedance stubs are used in the branch-line coupler to achieve dual-band applications. Parameters of the structure are chosen and provided for design guidelines. Broader...

  • Microstrip filter with H-shaped fractal. Chen, Dong; Wang, Sheng; Li, Lin; Liu, Zhengyou; Zhao, Xing-Zhong; Zhang, Man; Chen, Zhangyou // Applied Physics Letters;6/19/2006, Vol. 88 Issue 25, p253507 

    A microstrip filter with an H-shaped fractal pattern is proposed. It is found that the microstrip filter has multiple gaps and passbands for electromagnetic waves over an ultrawide frequency range, and the band gaps shift to lower frequencies with the increasing first level length of the fractal...

  • Electromagnetic Behavior of SRR Loaded Microstrip Transmission Lines: Investigation for Different SRR Types and Array Topologies. Disken, G.; Pala, F.; Demir, E.; Korucu, H. D.; Ekmekci, E. // PIERS Proceedings;Aug2013, p1796 

    We study on microstrip transmission lines loaded by SRR structures in various types, numbers and topologies. We basically observe the effects of SRR number, SRR geometry and the other design parameters on insertion loss (i.e., magnitude of S21 in dB). We present that SRR loaded transmission...

  • A new parameter-extraction method for DGS and its application to the low-pass filter. Liu, Haiwen; Sun, Xiaowei; Li, Zhengfan // Active & Passive Electronic Components;Jun2004, Vol. 27 Issue 2, p119 

    A new and simple parameter-extraction method for the equivalent circuit of defected ground structure (DGS) is presented. Using this method, circuit simulation, based on the DGS equivalent-circuit model, show excellent agreements with the electromagnetic (EM) simulation. Further, our method is...

  • Form Microstrip Couplers With Shielded Membranes. Benahmed, Nasreddine; Benabdallah, Nadia; Bendimerad, Fethi Tarik // Microwaves & RF;Jul2010, Vol. 49 Issue 7, p84 

    The article presents an analysis of the symmetric-shielded-membrane microstrip coupler (SMMC) to be able to determine the construction of the SMM transmission lines. The analysis makes use of the method of moments (MoM) electromagnetic (EM) simulations which will reveal the directivity and...

  • Electromagnetic characterization of metamaterials in the centimetric frequency band using an original adjustable height stripline. Chevalier, A.; Gomez, S.; Queffelec, P. // Journal of Applied Physics;2014, Vol. 116 Issue 12, p1 

    We propose a broadband measurement method for measuring the electromagnetic (EM) properties of metamaterials in the 1-6 GHz frequency range. For this experimental technique, an original adjustable height strip transmission-line was developed that makes it possible to characterize metamaterials...

  • REVIEWING THE BASICS OF SUSPENDED STRIPLINES. Maloratsky, Leo G. // Microwave Journal;Oct2002, Vol. 45 Issue 10, p82 

    Discusses some of the basic principles and concepts for suspended striplines. Reasons for the wide use of printed transmission lines; Advantages of the suspended stripline; Discussion on coupled suspended striplines.


Read the Article


Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics