In this letter, composite right/left handed transmission lines based on complementary split ring resonators are applied to the design of dual-band microwave components. Specifically, impedance inverters operative at two (arbitrary) different frequencies (one them within left-handed band and other right-handed band) designed implementation a branch line hybrid coupler. The characterization device reveals good performance operation. fabricated is small, fully planar, vias not required.

This paper is focused on the application of open split ring resonators (OSRRs) and their dual counterparts, complementary (OCSRRs), to synthesis composite right/left-handed transmission lines, that is, artificial lines exhibiting backward wave propagation at low frequencies forward high frequencies. Due small dimensions these resonators, resulting are very compact. Several with different electrical characteristics topologies, reported as illustrative examples. It shown can be applied...

This paper is focused on the design of generalized composite right/left handed (CRLH) transmission lines in a fully planar configuration, that is, without use surface-mount components. These artificial exhibit multiple, alternating backward and forward-transmission bands, are therefore useful for synthesis multi-band microwave Specifically, quad-band power splitter, branch line hybrid coupler dual-bandpass filter, all them based fourth-order CRLH (i.e., exhibiting 2 left-handed right-handed...

Abstract In this article, it is demonstrated that metamaterial transmission lines implemented by means of complementary split rings resonators are useful for the design planar microwave components with small dimensions and broad operational bandwidths. These characteristics achieved thanks to electrical size controllability dispersion diagram in such artificial lines. The technique illustrated a rat‐race hybrid coupler. performance metamaterial‐based component compared those classical...

This paper is focused on metamaterial transmission lines based split rings. Specifically, the considered are those hybrid approach, where complementary ring resonators (CSRRs) combined with series gaps and shunt inductive stubs, implemented by loading a host line open (OSRRs) (OCSRRs). The dispersion characteristics characteristic impedance of such lines, essential for design purposes, analyzed to light lumped element equivalent circuit models lines. Finally, it shown that useful power...

It is demonstrated that metamaterial transmission lines based on complementary split rings resonators (CSRRs) can be applied to the design of quadrature phase shifters with compact dimensions and broad operational bandwidth. The structure consists a Y-junction output exhibiting difference 90°, these being artificial implemented by means CSRRs. device compared conventional implementation. From characterisation both devices it concluded preserved over wider band in metamaterial-based shifter.

In this work, a rat-race hybrid coupler based on left handed (LH) and right (RH) lines implemented by means of complementary split rings resonators (CSRRs) is designed fabricated for the first time. The three 90deg transmission conventional device are replaced RH artificial consisting combination CSRR shunt connected stub; 270deg line substituted -90deg LH line, where combined with series gap. resulting times smaller than rat-race, do not include lumped elements, performance good. Since...

In this work, dual-band Y-junction power dividers based on impedance inverters with composite right/left handed (CRLH) characteristics are presented for the first time. The either implemented through complementary split ring resonators (CSRRs) or spiral (CSRs). By using left and right frequency bands of inverters, required phase shifts, −90° +90°, at respective operating frequencies, ƒ <inf xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">1</inf>...

In this letter, a generalized circuit model valid for the description of composite right/left handed metamaterial transmission lines with an arbitrary number bands is presented first time. The T- or pi-circuit where series branch composed parallel connected resonators, and shunt consists on resonant tanks. It demonstrated that any exhibiting alternate left-handed right-handed can be expressed in form proposed circuit. This justifies consideration as multiband lines.

Abstract In this contribution, it is shown that complementary spiral resonators (CSRs) are useful particles for the miniaturization of planar microwave components based on metamaterial concepts. Specifically, we will focus two different applications: (i) design high pass filters balanced composite right/left handed microstrip lines and (ii) dual band impedance inverters, which can be applied to many devices such as couplers power dividers, among others. © 2009 Wiley Periodicals, Inc....

A dual-band rat race hybrid coupler based on artificial lines implemented by means of complementary split ring resonators (CSRRs) is presented for the first time. Contrary to other components (such as branch line couplers or power dividers) composite right/left handed (CRLH) characteristics CSRR-loaded lines, present design approach diplexer action pairs lines; one them designed exhibit right wave propagation and left at lower upper frequency bands, respectively. The fabricated device...

This paper is focused on the comparison between two main categories of resonant-type metamaterial transmission lines: those based split ring resonators (SRRs) and their complementary counterparts, that is, (CSRRs). It will be shown both SRR- CSRR-based lines exhibit a very similar behavior, this analogous behavior has been explained basis equivalent circuit model unit cell these from duality arguments.

In this paper, a detailed analysis of the dispersion characteristics metamaterial transmission lines, based on lumped element T-circuit model is carried out. One main relevant these artificial lines possibility to tailor phase response. This leads unique properties which are interest for microwave circuit design, such as bandwidth enhancement or multiband (dual-band) operation, among others. However, it shown in paper that, spite larger number parameters (as compared conventional lines),...

Abstract Metamaterial transmission lines are artificial consisting on a host conventional line (such as microstrip or coplanar waveguide) loaded with reactive elements. The main relevant characteristic of these propagating structures is the fact that, due to greater number parameters (as compared lines), it possible tailor (engineer) their dispersion characteristics achieve certain functionalities not achievable though lines. Enhanced bandwidth components and multiband benefits engineering...

In this work, generalized composite right/left handed (CRLH) transmission lines are implemented in a fully planar configuration coplanar waveguide (CPW) technology. These artificial exhibit two left (or backward) bands and right forward) alternating, therefore of interest for the synthesis quad-band microwave components. The by loading host CPW with open split ring resonators (OSRRs) complementary (OCSRRs). Accurate circuit models different line elements, taking parasitics into account,...

In this work, the application of Complementary Split Rings Resonators (CSRRs) to design a rat-race hybrid in microstrip technology is analyzed. The use left-handed (LH) cell composed by CSRR etched ground plane and series capacitive gap reduces length required 270 - line factor 5. Thanks reduction, area flnal prototype 4 times smaller than conventional distributed design. measured results show satisfactory behavior frequency interest.

Abstract In this article, novel metamaterial transmission lines exhibiting right‐handed wave propagation at low frequencies and left‐handed high are presented. The unconventional dispersion characteristics of these composite right/left‐handed is obtained by parallel connecting unit cells, both implemented using complementary split‐ring resonators. Thanks to the diplexer action structure, either (tuned lower frequency band) or upper cell transmits injected power, thus achieving structure. It...

This paper presents a linear displacement sensor exhibiting good linearity and dynamic range. The consists of pair parallel microstrip lines both terminated with matched load (the static part) electric-LC (ELC) resonators tuned to different (but closely spaced) frequencies, etched in movable substrate. By feeding the harmonic signals resonance frequencies ELC resonators, such are completely reflected back source provided ELCs on top lines, coupled them (i.e., at short distance adequate...

In this work, it is shown that dual-band microwave components based on plusmn90deg metamaterial transmission lines can be miniaturized by implementing the artificial means of complementary spiral resonators (CSRs). Such exhibit a composite right/left handed (CRLH) behavior. Dual-band operation achieved designing to provide phase -90o at lower operating frequency (within left band) and +90o shift upper right band). Size reduction, as compared conventional implementations, with single unit...

Generalized composite right/left handed (CRLH) transmission lines are implemented in a fully planar configuration coplanar waveguide (CPW) technology. These artificial exhibit two left and right bands alternating, therefore of interest for the synthesis quad-band microwave components. The by loading host CPW with open split ring resonators (OSRRs) complementary (OCSRRs). An accurate circuit model whole structure is experimentally validated. applied to design power divider operative at GSM...