Correction to "Losses in Microstrip" (Correspondence)

Pucel, R.A.; Masse, D.; Hartwig, C.P.

doi:10.1109/tmtt.1968.1126867

Cited by 53 publications

(12 citation statements)

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“…Firstly, in the calculation a truncation error after three decimal points has occurred and secondly, the CST Microwave Studio simulator works on finite integral technique where as calculation has been based on the full-wave analysis. After calculating the effective dielectric permittivity at different frequencies, dielectric attenuation constant, index of attenuation loss is calculated using the formula mentioned below [25]:…”

Section: Dielectric Lossmentioning

confidence: 99%

Dual-band rectangular microstrip patch antenna at terahertz frequency for surveillance system

Jha

Singh

2009

J Comput Electron

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In this paper, a rectangular microstrip patch antenna on two-layer substrate materials has been analyzed and simulated at the terahertz frequency regime for the surveillance system. The proposed antenna has been simulated at 600 and 800 GHz frequencies by using CST Microwave Studio a commercially available simulator based on finite integral technique. This antenna structure is also simulated by using finite element method based simulator Ansoft HFSS and the results are compared with former.

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Section: Dielectric Lossmentioning

confidence: 99%

Dual-band rectangular microstrip patch antenna at terahertz frequency for surveillance system

Jha

Singh

2009

J Comput Electron

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“…Therefore, the fields for a lossless transmission line are normally employed to evaluate the parameters of these (low loss) practical transmission lines. 7 For TEM mode, the fields lie on a transverse plane and, consequently, the electric field for the coaxial line has only radial component. Applying Gauss' law over a cylindrical surface enclosing the inner conductor, we obtain the total charge per unit length on the inner conductor as…”

Section: Formulation For Simple Transmission Linesmentioning

confidence: 99%

Transmission Lines

2015

Radio‐Frequency Integrated‐Circuit Engineering

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Transmission lines are important elements in radio-frequency integrated circuits (RFICs). The design of RFICs, especially at extremely high frequencies such as those in the upper end of the millimeter-wave range, would not be complete, or even optimum, without considering transmission lines. While the use of transmission lines in RFICs is, in general, not appealing due to their relatively large size as compared to on-chip lumped elements, they are inevitable at extremely high frequencies where lumped elements do not behave properly and/or have quality (Q) factors so low that render their effectiveness. Even at low radio-frequency (RF) ranges, where on-chip elements are preferred and used, RFIC designers should make use of the theory of transmission lines to properly implement lumped elements in circuits to achieve certain features. Therefore, it is crucial that RFIC engineers have sufficient knowledge in transmission lines and consider their possible use in RFICs. The basics of transmission lines can be found in various textbooks in electromagnetics, for example, Reference [1]. In this chapter, we will address the fundamentals of transmission lines for both single and multiconductor transmission lines including transmission-line equations and important transmission-line parameters such as characteristic impedance, propagation constant, phase velocity, effective relative dielectric constant, dispersion, loss, distortion, impedance, reflection coefficient, etc. This chapter also discusses synthetic transmission lines and commonly used printed-circuit transmission lines, particularly their use for RFICs. ESSENTIALS OF TRANSMISSION LINESTo illustrate the possible need of considering transmission lines in RFICs, we consider a very simple interconnect consisting of two conductors, or one conductor and a ground plane, with the input and output of the two conductors connected to a voltage source and a load, respectively, as shown in Figure 4.1. We assume the source produces a sinusoidal signal v S (t) = V S cos(2 ft) at f = 200 MHz, the substrate supporting the interconnect has a relative dielectric constant r = 4.7, and the length of the interconnect is = 0.1 m. As Radio-Frequency Integrated-Circuit Engineering, First Edition. Cam Nguyen.

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“…However, the characteristic impedance of the line itself is an inconsistent parameter at terahertz frequency, which makes the analysis of conductor loss a challenging task. We have successfully used the formula proposed in [31,32] to calculate the conductor attenuation constant of a narrow microstrip transmission-line at terahertz frequency…”

Section: Conductor Lossmentioning

confidence: 99%

Analysis of narrow terahertz microstrip transmission-line on multilayered substrate

Jha

Singh

2010

J Comput Electron

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In this paper, numerical analysis of the narrow microstrip transmission-line on two and three layersubstrate material at 0.5-1.0 THz frequency of the electromagnetic spectrum is presented. Various analytical results are compared with simulations which have been performed by commercially available simulators: (a) CST Microwave Studio based on the finite integral technique and (b) Ansoft HFSS based on the finite element technique. The proposed narrow microstrip transmission line with improved performance is useful as interconnect for multilayer planar components designed in the terahertz frequency regime of the electromagnetic spectrum. The analysis of the proposed structure has been validated with various reported literature.

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Correction to "Losses in Microstrip" (Correspondence)

Cited by 53 publications

References 0 publications

Dual-band rectangular microstrip patch antenna at terahertz frequency for surveillance system

Dual-band rectangular microstrip patch antenna at terahertz frequency for surveillance system

Transmission Lines

Analysis of narrow terahertz microstrip transmission-line on multilayered substrate

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