Full-wave nonlinear analysis of nonradiative dielectric guide circuits including lumped elements

2006 ◽  
Vol 54 (1) ◽  
pp. 173-179
Author(s):  
N.P. Pathak ◽  
A. Basu ◽  
S.K. Koul
Keyword(s):  
Nonlinear Analysis ◽  
Full Wave ◽  
Lumped Elements ◽  
Dielectric Guide ◽  
Nonradiative Dielectric

Accelerated Convergence for Lumped-Elements Based on-Package RF Passives Design by Using Curve Fitted Formula

2005 ◽  
Author(s):  
Xiangyin Zeng ◽  
Jiangqi He ◽  
Baoshu Xu
Keyword(s):  
Block Design ◽  
Synthesis Method ◽  
Software Tool ◽  
Tolerance Analysis ◽  
Spiral Inductor ◽  
Passive Components ◽  
Full Wave ◽  
Lack Of Information ◽  
Lumped Elements ◽  
Speed Up

Integrating passive components on package is getting more and more attractive. To speed up the lumped-elements-based RF functional blocks, like filters, matching networks and so on, fast synthesis of these lumped elements is necessary. Traditional synthesis method like try-error-try again is not only time consuming but also hard to find an optimal one. This is especially true for spiral inductor design due to many tunable parameters. Design based on library has also some disadvantages, such as lack of information of manufacture tolerances’ impact. This paper describes an optimal synthesis method based on curve fitted formula. Full wave electromagnetic simulator is first used to model a set of typical structures. Curve fitting technique is then used to express capacitance, inductance, Q-factor, SRF as functions of geometric parameters and frequency, which is then integrated in a software tool for package inductor and capacitor design. With these fitted curves, manufacture tolerance analysis becomes very easier, and one can easily find the optimal design for the real application, therefore speeds up the function block design.

Scattering matrix solution for an ideal star-junction multiplexer based on ladder-type filters

2020 ◽  
Vol 12 (10) ◽  
pp. 954-959 ◽  
Author(s):  
Patricia Silveira ◽  
Jordi Verdú ◽  
Pedro de Paco
Keyword(s):  
Optimization Procedure ◽  
Scattering Matrix ◽  
Matrix Solution ◽  
Full Wave ◽  
Direct Scattering ◽  
Starting Point ◽  
Lumped Elements ◽  
Good Starting Point ◽  
Numerical Computing ◽  
Suitable Environment

AbstractMultiplexer design is a challenging task due to the high number of variables involved, raising the difficulty as the numbers of filters increase. Numerical computing tools provide a suitable environment to evaluate topologies and technologies before starting the long journey to the device. A direct scattering matrix solution for a star-junction multiplexer, based on the circuit theory, is presented in this work. The resulting star-junction matrix is introduced in a matrix system with the scattering matrix of each filter to evaluate the overall multiplexer response. This approach allows the acquisition of main multiplexer parameters like transmission, reflection, and cross-isolation response in a compact way, achieving a good starting point for the further full-wave optimization procedure. Furthermore, an approach for the design of a star-junction multiplexer is tackled based on the reflection coefficient phase. A triplexer under this interpretation is presented and evaluated using lumped elements.

Energy and Communication Efficient FSS for Equivalent Model of Hard-Coated Energy Saving Glass

2021 ◽  
Vol 1160 ◽  
pp. 57-64
Author(s):  
Ghaffer Iqbal Kiani ◽  
Jahanzeb Khan
Keyword(s):  
Energy Saving ◽  
Equivalent Circuit ◽  
Oblique Incidence ◽  
Equivalent Circuit Model ◽  
Equivalent Model ◽  
Full Wave ◽  
Lumped Elements ◽  
Microwave Signals ◽  
Band Pass ◽  
Stable Frequency

An energy and communication efficient FSS is presented for equivalent model of ESG with hard coating. An FSS with second order band-pass response has been realized by full wave 3D simulations and results have been imitated using an equivalent circuit model to calculate the value of lumped elements. The design is composed of three cascaded FSSs with two glass layers of 6 mm each in between. Due to this topology the transmission of useful RF/microwave signals has been improved for a wider bandwidth, increased thermal insulation, stable frequency and polarization at oblique incidence and security for WLAN at 2.45 GHz.

Nonradiative dielectric-guide FM gunn oscillator at 60-GHz band

1995 ◽  
Vol 78 (9) ◽  
pp. 73-80
Author(s):  
Futoshi Kuroki ◽  
Junnei Baba ◽  
Hiroshi Furuya ◽  
Tsukasa Yoneyama Member
Keyword(s):  
60 Ghz ◽  
Gunn Oscillator ◽  
Dielectric Guide ◽  
Nonradiative Dielectric
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