A Compact Planar Hexa-Band Internal Antenna for Mobile Phone

Sze, Jia‐Yi; Wu, Yifeng

doi:10.2528/pier10020603

Cited by 39 publications

(30 citation statements)

References 20 publications

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“…The proposed synthesis approach can have practical applications in the design of CPW-to-microstrip transitions useful to the packaging of compact integrated circuits [20][21][22][23][24][25][26][27][28][29].…”

Section: Theorymentioning

confidence: 99%

Synthesis of Multi-Step Coplanar Waveguide-to-Microstrip Transition

Costanzo¹

2011

PIER

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Abstract-A synthesis procedure is developed in this paper for the design of N-step coplanar waveguide-to-microstrip transitions. An equivalent circuit approach is adopted to model the structure in terms of N cascaded ABCD matrices relative to the N coplanar waveguide sections forming the transition. A constrained optimization problem is formulated as the minimum finding of a proper functional to accurately determine the transition dimensions by imposing an upper bound to the return loss within a prescribed frequency band. An iterative Nstep procedure is developed to find the optimization problem solution. Numerical results on millimeter-wave transition configurations are provided to demonstrate the effectiveness of the proposed synthesis method. A back-to-back transition prototype with N = 3 sections is then fabricated and characterized in terms of measured S-parameters to experimentally demonstrate a return loss better than 10 dB in the frequency range from 1 GHz up to 40 GHz.

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Section: Theorymentioning

confidence: 99%

Synthesis of Multi-Step Coplanar Waveguide-to-Microstrip Transition

Costanzo¹

2011

PIER

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“…In this way, it is possible to generate two signals with non-harmonical frequency ratio and with a known phase relation with the reference signal, as shown in Equations (A1) to (A8) in Appendix A. Together with the output signals of the RSOs, a sample of the reference signal is transmitted by means of a three port multi-band antenna [20][21][22][23].…”

Section: Topologymentioning

confidence: 99%

Design and Analysis of a Multi-Carrier Tx-Rx System Based on Rationally Synchronized Oscillators for Localization Applications

Fernández

Hoeye²,

Vázquez³

et al. 2011

PIER

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Abstract-In this work, a novel multi-carrier Tx-Rx system based on rationally synchronized oscillators to be used in RF-source localization applications is presented. The Tx subsystem is composed by two rationally synchronized oscillators, with different operation frequency, which share the reference signal. This signal is transmitted together with the one generated by the oscillators. In the Rx subsystem, the reference signal is provided by an oscillator which is synchronized with the received reference signal. According to the simulation results, with the proposed approach, the determination of the relative phase variation suffered by the transmitted signals, due to the propagation channel, can be achieved with an error less than 0.6 • . It is also shown that the dynamic response of the system can be optimized by properly selecting the operation point of all oscillators.

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“…Similar radiating backgrounds have been extensively analyzed in many other works [8][9][10][11][12][13][14][15], while metamaterial geometries are considered in numerous treatises and studies [16][17][18][19][20][21]. Investigations on planar structures are contained in several analyses [22][23][24][25][26][27][28] and scattering is broadly examined in works such as [29] and [30]. Semi analytical solutions are of prime importance in research regardless of the scientific domain they are referred to.…”

Section: Introductory Commentsmentioning

confidence: 99%

Electromagnetic Scattering of the Field of a Metamaterial Slab Antenna by an Arbitrarily Positioned Cluster of Metallic Cylinders

Valagiannopoulos¹

2011

PIER

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Abstract-The operation of a slab antenna with low-index metamaterial substrate is affected by a cluster of metallic cylinders positioned in the near-field area. A semi-analytical solution of the defined boundary value problem is obtained based on the small size of the rods. Several different configurations are found to possess beneficial features concerning the total radiated power and the angle of directive emission. The deduced diagrams are independently validated and discussed, revealing certain conclusions. INTRODUCTORY COMMENTSSlab configurations with radiating and propagating properties have been extensively investigated in numerous publications. It has been stated [1] that a metamaterial ground plane can exhibit certain incidence angle-dependent reflection phases in order to support directional emissions. Similar structures can be utilized in designing a bianisotropic cloak fixed in a uniformly moving medium, according to the findings presented in [2]. The coordinate transformation technique has been also employed in examining Cartesian metamaterial substrates which not only improve the directive emission but also enhance the radiation efficiency as the dipole feed gets closer and closer to the metallic reflector [3]. Furthermore, transition slab layers have

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A Compact Planar Hexa-Band Internal Antenna for Mobile Phone

Cited by 39 publications

References 20 publications

Synthesis of Multi-Step Coplanar Waveguide-to-Microstrip Transition

Synthesis of Multi-Step Coplanar Waveguide-to-Microstrip Transition

Design and Analysis of a Multi-Carrier Tx-Rx System Based on Rationally Synchronized Oscillators for Localization Applications

Electromagnetic Scattering of the Field of a Metamaterial Slab Antenna by an Arbitrarily Positioned Cluster of Metallic Cylinders

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