Low-loss on-chip transmission lines with micro-patterned artificial dielectric shields

Ma, Yue; Rejaei, B.; Zhuang, Yan

doi:10.1049/el:20081324

Cited by 7 publications

(13 citation statements)

References 3 publications

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“…Anisotropic artificial dielectric layers with very high dielectric constants have recently been used for the fabrication substrate shields [11,12] and integrated high gain antennas [14]. The structure proposed in [11] is built in a conventional IC process by vertically stacking patterned metal layers isolated by thin, but otherwise conventional dielectric films as shown in Fig.…”

Section: Artificial Dielectric With High In-plane Permittivitymentioning

confidence: 99%

“…In particular, an IC compatible, anisotropic artificial dielectric built from overlapping arrays of metallic squares has recently been shown to exhibit an in-plane dielectric constant exceeding several thousand [11,12].…”

Section: Introductionmentioning

confidence: 99%

“…In this paper we propose integrated planar dielectric waveguides based on artificial dielectric films introduced in [11,12]. Such devices may be viewed as mm-wave analogues of planar optical waveguides implemented on optical chips [13].…”

Section: Introductionmentioning

confidence: 99%

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Millimeter-wave artificial dielectric waveguides for integrated applications

Barzegar-Parizi

Rejaei

2014

2014 IEEE International Microwave and RF Conference (IMaRC)

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High-quality guided wave devices are key components in integrated millimeter-wave circuits. In this paper, we propose mm-wave planar dielectric waveguides based on thin, anisotropic artificial dielectric layers with very high in-plane permittivity. Waves propagating on such films are surface waves whose field exponentially decays outside the film in the vertical direction, similar to waveguides commonly used in integrated optics. The very high in-plane permittivity of the artificial dielectric layers leads to strong field confinement, and allows the implementation of relatively thin waveguides. This fact, together with the planar structure of these devices, make them highly suitable for monolithic integration. Although the performance of the waveguide proposed is somewhat limited by effective electric and, in particular, magnetic polarization losses at mm-wave frequencies, extensive numerical calculations demonstrate the feasibility of devices with a quality factor up to 26 in the 55-90 GHz range on a 10 Ω.cm silicon substrate.Index Terms-planar waveguide; artificial dielectric; in-plane permittivity; perpendicular permeability, polarization loss

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Section: Artificial Dielectric With High In-plane Permittivitymentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Millimeter-wave artificial dielectric waveguides for integrated applications

Barzegar-Parizi

Rejaei

2014

2014 IEEE International Microwave and RF Conference (IMaRC)

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“…Since the electric dipoles in an ADL produce a large effective permittivity, microwave applications other than lens have recently been investigated. These include miniaturized resonators [3,4], silicon substrate shielding [5,6], and antenna backplanes [7,8]. Periodic arrays of square metal patches are often used in ADLs for the purpose of design convenience [5][6][7].…”

Section: Introductionmentioning

confidence: 99%

“…In general, the period in a periodic metamaterial is much smaller than the electromagnetic wavelength at the operating frequency. The periods in ADLs are about three orders smaller than the wavelengths [5][6][7]. When the period is increased to increase the ε eff of an ADL, it approaches the electromagnetic wavelength, and the assumption, under which the above approximate expression is derived, may be violated.…”

Section: Introductionmentioning

confidence: 99%

Equivalent Circuit Analysis of Artificial Dielectric Layers

Sano¹,

Ikebe²

2017

PIER M

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Abstract-On the basis of equivalent circuit analysis, we investigated the electromagnetic characteristics of artificial dielectric layers (ADLs) having arrays of square metal patches for the normal incidence of plane waves, where the electromagnetic wavelength ranges from p/10 to p/2 (p: period). A good agreement was obtained between measured and calculated S parameters and electromagnetic parameters (permittivity and permeability) for a fabricated ADL except at around 5.2 and 9.2 GHz. A possible cause of the discrepancy between the measured and calculated electromagnetic characteristics is discussed by investigating the electromagnetic wave propagating along the surface of the ADL. Applications of the equivalent circuit analysis to ADLs with other geometries are also discussed.

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A wideband CMOS distributed amplifier with slow-wave shielded transmission lines

Lahiji

Katehi

Mohammadi

2010

Int. j. microw. wirel. technol.

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A four-stage distributed amplifier utilizing low-loss slow-wave shielded (SWS) transmission lines is implemented in a standard 0.13 μm Complementary Metal-Oxide-Semiconductor (CMOS) technology. The amplifier when biased in its high current operating mode of IDtotal = 46 mA (at Vdd = 2.2 V, Pdiss = 101 mW) provides a forward transmission gain of 11.3 ± 1.5 dB with a 3-dB bandwidth of 17 GHz and a gain-bandwidth product of 74 GHz. The noise figure (NF) under the same bias condition is better than 8.5 dB up to 10 GHz. The measured output-referred 1-dB compression point is higher than +2 dBm. The amplifier is also measured under low-bias condition of IDtotal = 18 mA (at Vdd = 1.15 V, Pdiss = 20.7 mW). It provides a transmission gain of 6.6 ± 1 dB, a 3-dB bandwidth of 14.8 GHz, a gain-bandwidth product of 35.5 GHz, and a NF of better than 8.6 dB up to 10 GHz. Despite using a simple four-stage cascode design, this distributed amplifier achieves very high-gain-bandwidth product at a relatively low DC power compared to the state of the art CMOS distributed amplifiers reported in the literature. This is due to the incorporation of low-loss SWS coplanar waveguide (CPW) transmission lines with a loss factor of nearly 50% of that of standard transmission lines on CMOS-grade Si substrate.

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Low-loss on-chip transmission lines with micro-patterned artificial dielectric shields

Cited by 7 publications

References 3 publications

Millimeter-wave artificial dielectric waveguides for integrated applications

Millimeter-wave artificial dielectric waveguides for integrated applications

Equivalent Circuit Analysis of Artificial Dielectric Layers

A wideband CMOS distributed amplifier with slow-wave shielded transmission lines

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