High Performance Spiral Inductor on Deep-Trench-Mesh Silicon Substrate

Tu, Hsin-Lung; Chen, I.-S.; Yeh, Ping-Chun; Chiou, Hwann-Kaeo

doi:10.1109/lmwc.2006.885608

Cited by 11 publications

(3 citation statements)

References 8 publications

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“…However, the PGS decreases the self‐resonant frequency due to increased capacitive coupling between the inductor metal line and the conductive shield pattern [6]. To reduce the capacitive coupling, a low dielectric material is inserted under the inductor, and a micromachine method has been introduced [7, 8]. Although effective, these approaches have the disadvantage of complex processes.…”

Section: Circuit Designmentioning

confidence: 99%

High‐gain reconfigurable LNA using optimized Q‐factor inductor and switched capacitor

Chang

Park

Ham

et al. 2011

Micro & Optical Tech Letters

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In the case of the FPC antenna with the uniform superstrate, the maximum gain and 3-dB radiation bandwidth are about 15.9 dB and 25 MHz (1.1%), respectively. Considering that those of the proposed antenna are about 15.95 dB and 95 MHz (4.1%), it is worth noting that the proposed simple tapering method applied to superstrate cells is fairly effective for widening the antenna bandwidth without a large sacrifice in antenna gain. It is also worth mentioning that we have used the realized gain reflecting the total amount of efficiency to show the overall performance of our antenna. Therefore, it can be said that the influence of the return loss shown in Figure 7(a) is already considered in Figure 7(b).Finally, the measured radiation patterns in the E-and H-planes are compared with the simulation data in Figure 8. Owing to the rectangular-shaped aperture geometry, the 3-dB beam widths in the elevational and azimuthal directions are about 14 and 62 , which are appropriate for WiBro base station application. The maximum side lobe level is about À25 dB, and the measured front-to-back ratio (FBR) is larger than 35 dB. On the whole, the measured radiation behaviors agree well with our prediction.

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Section: Circuit Designmentioning

confidence: 99%

High‐gain reconfigurable LNA using optimized Q‐factor inductor and switched capacitor

Chang

Park

Ham

et al. 2011

Micro & Optical Tech Letters

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“…This methodology, based on the set of algorithms (software routine) is devised in such a way that it is technology node independent. Particular care is taken in inductor modelling and the design of monolithic spiral inductors [5]. Successful designs using this method have previously been presented for a 0.35‐μm CMOS [6] and 0.35‐μm SiGe BiCMOS [7, 8] processes.…”

Section: Introductionmentioning

confidence: 99%

Switch‐mode power amplifier design method

Božanić

Sinha

2011

Micro & Optical Tech Letters

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In this letter, it is shown that doctrines behind the devised switch‐mode design method investigated by means of simulations for 0.35‐μm technology are indeed technology node and application independent.Experimental results verifying this claim are presented for 180‐nm SiGe BiCMOS process. Furthermore, a possible expansion of the method is proposed for mm‐wave applications. © 2011 Wiley Periodicals, Inc. Microwave Opt Technol Lett 53:2724–2728, 2011; View this article online at wileyonlinelibrary.com. DOI 10.1002/mop.26444

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“…Many studies have tried to solve this problem and improve the inductor quality by employing toroidal [5] [6] and solenoidal [7] structures or removing the silicon under the spiral [8] [9] for example. However, all of them make use of unconventional processing or post-processing techniques not suitable for large-volume production.…”

Section: Introductionmentioning

confidence: 99%

A study of stacked and miniature 3-D inductor performance for radio frequency integrated circuit design

et al. 2007

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The performance of stacked and miniature three-dimensional spiral inductors is analyzed and compared to standard planar coils. For this purpose, nine of these new structures have been fabricated in a 0.35-µm four-metal SiGe process. According to the measurement results, some of the proposed stacked inductors occupy only 48% of the area of a conventional planar inductor with the same inductance value and work frequency. The area reduction is even more significant with the miniatur e 3-D structures, which occupy only 22% in some cases, and translate the inductor selfresonance frequency to higher values than the conventional stacked inductors. In spite of this area reduction, these new structures employ metal levels close to the substrate, which significantly degrades the quality factor. So the standard planar coils continue to be the best choice if the designer requires high-quality inductors. However, stacked and 3-D miniature structures could be a better solution if the area saving is the circuit major priority.

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High Performance Spiral Inductor on Deep-Trench-Mesh Silicon Substrate

Cited by 11 publications

References 8 publications

High‐gain reconfigurable LNA using optimized Q‐factor inductor and switched capacitor

High‐gain reconfigurable LNA using optimized Q‐factor inductor and switched capacitor

Switch‐mode power amplifier design method

A study of stacked and miniature 3-D inductor performance for radio frequency integrated circuit design

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