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JournalISSN: 1051-8207

IEEE Microwave and Guided Wave Letters 

IEEE Microwave Theory and Techniques Society
About: IEEE Microwave and Guided Wave Letters is an academic journal. The journal publishes majorly in the area(s): Monolithic microwave integrated circuit & Microstrip. It has an ISSN identifier of 1051-8207. Over the lifetime, 1221 publications have been published receiving 36167 citations.


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Journal ArticleDOI
TL;DR: In this paper, a 2D photonic bandgap (PBG) structure for microstrip lines is proposed, in which a periodic 2D pattern consisting of circles is etched in the ground plane of microstrip line.
Abstract: A new two-dimensional (2-D) photonic bandgap (PBG) structure for microstrip lines is proposed, in which a periodic 2-D pattern consisting of circles is etched in the ground plane of microstrip line. No drilling through the substrate is required. Three PBG circuits were fabricated with different circle radii to determine the optimum dimensions, as well as a PBG circuit with the compensated right-angle microstrip bend. Measurements show that deep and wide stopbands can be achieved using this method.

706 citations

Journal ArticleDOI
TL;DR: In this paper, the Kramers-Kronig relationship is used to relate the real and imaginary parts of the constitutive parameters of the PML media to deduce the asymptotic behaviors of these parameters at low and high frequencies.
Abstract: Perfectly matched layers (PMLs), which are employed for mesh truncation in the finite-difference time-domain (FDTD) or in finite element methods (FEMs), can be realized by artificial anisotropic materials with properly chosen permittivity and permeability tensors. The tensor constitutive parameters must satisfy the Kramers-Kronig relationships, so that the law of causality holds. These relations are used to relate the real and imaginary parts of the constitutive parameters of the PML media to deduce the asymptotic behaviors of these parameters at low and high frequencies.

508 citations

Journal ArticleDOI
TL;DR: In this paper, the construction and performance of metal membrane radio frequency MEMS switches at microwave and millimeter-wave frequencies was described. But the authors focused on the performance of the switches in terms of on-off capacitance ratio.
Abstract: 'This letter details the construction and performance of metal membrane radio frequency MEMS switches at microwave and millimeter-wave frequencies. These shunt switches possess a movable metal membrane which pulls down onto a metal/dielectric sandwich to form a capacitive switch. These switches exhibit low loss (<0.25 dB at 35 GHz) with good isolation (35 dB at 35 GHz). These devices possess on-off capacitance ratios in the range of 80-110 with a cutoff frequency (figure of merit) in excess of 9000 GHz, significantly better than that achievable with electronic switching devices.

474 citations

Journal ArticleDOI
TL;DR: In this article, a new one-dimensional defected ground unit lattice is proposed to improve the effective inductance of the cutoff and stopband in order to control the cutoff frequency characteristics.
Abstract: A new one-dimensional (1-D) defected ground unit lattice is proposed in order to improve the effective inductance. Increasing the effective inductance makes it easy to control the cutoff frequency characteristics. The proposed periodic defected ground structure (DGS) provides the excellent cutoff and stopband characteristics. In order to show the improved the effective inductance, three DGS circuits were fabricated with identical periodic and different dimensions. Measurements on the fabricated DGS circuits show that the cutoff and stopband center frequency characteristics depend on the physical dimension of the proposed DGS unit lattice,.

429 citations

Journal ArticleDOI
TL;DR: In this article, a novel absorbing boundary condition (ABC) for FD-TD meshes in two dimensions, called the "perfectly matched layer (PML) for the absorption of electromagnetic waves", was proposed.
Abstract: Berenger recently published a novel absorbing boundary condition (ABC) for FD-TD meshes in two dimensions, claiming orders-of-magnitude improved performance relative to any earlier technique. This approach, which he calls the "perfectly matched layer (PML) for the absorption of electromagnetic waves", creates a nonphysical absorber adjacent to the outer grid boundary that has a wave impedance independent of the angle of incidence and frequency of outgoing scattered waves. This paper verifies Berenger's strong claims for PML for 2-D FD-TD grids and extends and verifies PML for 3-D FD-TD grids. Indeed, PML is >40 db more accurate than second-order Mur (1981), and PML works just as well in 3-D as it does in 2-D. It should have a major impact upon the entire FD-TD modeling community, leading to new possibilities for high-accuracy simulations especially for low-observable aerospace targets. >

408 citations

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Performance
Metrics
No. of papers from the Journal in previous years
YearPapers
20081
20061
20051
20018
2000123
1999128