A Hybrid Design Technique to Improve the Structure and Performance of Microstrip Components

2020 ◽  
Author(s):  
Mohammad (Behdad) Jamshidi ◽  
Saeed Roshani ◽  
Jakub Talla ◽  
Sobhan Roshani ◽  
Zdenek Peroutka
Keyword(s):  
Transmission Lines ◽  
Hybrid Approach ◽  
Size Reduction ◽  
Power Divider ◽  
Experimental Result ◽  
Harmonic Suppression ◽  
Design Technique ◽  
Simple Modification ◽  
Lc Circuit ◽  
Microstrip Components

Abstract A hybrid approach to improving the structures of microstrip devices is presented in this study. The proposed technique includes a combination of simple series inductor (L) and capacitor (C) circuits with microstrip-based structures and transmission lines. In this method, the LC circuits are replaced with those parts of the microstrip components that need to act like a bandpass filter. Not only does this simple modification lead to a 100% size reduction, an infinite number of harmonics suppression and high frequency selectivity theoretically, but it will also result in a noticeable performance practically compared to the conventional arrangements of microstrip lines. To show the capability of the proposed method, two quarter-wavelength branches of a Wilkinson Power Divider (WPD) have been rectified and implemented using the LC circuit, which is called LC branches in this paper. Extreme size reduction and harmonic suppression in this implementation of the Filtering Power Divider (FPD) can be considered two important outcomes of this design technique. Furthermore, by tuning the LC circuit, the arbitrary numbers of unwanted harmonics can be blocked, and the operating frequency, the stopband bandwidth and the operating bandwidth could be opted optionally. The experimental result has verified the theoretical and simulated results of the proposed technique. The results clearly demonstrate the considerable potential of this technique to improve the design process of the microstrip devices with desirable specifications.

scholarly journals Size reduction and performance improvement of a microstrip Wilkinson power divider using a hybrid design technique

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Mohammad Behdad Jamshidi ◽  
Saeed Roshani ◽  
Jakub Talla ◽  
Sobhan Roshani ◽  
Zdenek Peroutka
Keyword(s):  
Performance Improvement ◽  
Size Reduction ◽  
Power Divider ◽  
Experimental Result ◽  
Hybrid Technique ◽  
Harmonic Suppression ◽  
Efficient Design ◽  
Quarter Wavelength ◽  
Lc Circuit ◽  
Wilkinson Power Divider

AbstractIn the design of a microstrip power divider, there are some important factors, including harmonic suppression, insertion loss, and size reduction, which affect the quality of the final product. Thus improving each of these factors contributes to a more efficient design. In this respect, a hybrid technique to reduce the size and improve the performance of a Wilkinson power divider (WPD) is introduced in this paper. The proposed method includes a typical series LC circuit, a miniaturizing inductor, and two transmission lines, which make an LC branch. Accordingly, two quarter-wavelength branches of the conventional WPD are replaced by two proposed LC branches. Not only does this modification lead to a 100% size reduction, an infinite number of harmonics suppression, and high-frequency selectivity theoretically, but it also results in a noticeable performance improvement practically compared to using quarter-wavelength branches in the conventional microstrip power dividers. The main important contributions of this technique are extreme size reduction and harmonic suppression for the implementation of a filtering power divider (FPD). Furthermore, by tuning the LC circuit, the arbitrary numbers of unwanted harmonics are blocked while the operating frequency, the stopband bandwidth, and the operating bandwidth are chosen optionally. The experimental result verifies the theoretical and simulated results of the proposed technique and demonstrates its potential for improving the performance and reducing the size of other similar microstrip components.

Stub-Loaded Wilkinson Power Divider with Performance Enhancement

2015 ◽  
Vol 24 (08) ◽  
pp. 1550127
Author(s):  
Huan-Zhu Wang ◽  
Jia-Lin Li ◽  
Jian-Peng Wang ◽  
Wei Shao ◽  
Xue-Song Yang
Keyword(s):  
Transmission Lines ◽  
Performance Enhancement ◽  
Size Reduction ◽  
Power Divider ◽  
Harmonic Suppression ◽  
Power Dividers ◽  
High Impedance ◽  
Wilkinson Power Divider ◽  
Harmonic Components ◽  
Wilkinson Power Dividers

Microstrip Wilkinson power dividers with harmonic suppression and size reduction are investigated. It is found that by loading reactive components at the middle of high impedance transmission lines (TLs), both size reduction and harmonic suppression can be achieved. Analyses and designs of such a kind of power divider are formulated in this paper. To demonstrate the design methodology, two power dividers centered at 1.8 GHz are optimally designed and confirmed by experiments. As compared with conventional Wilkinson power divider, the proposed power divider exhibits 55.6% size reduction, and high suppressions are achieved for 2nd and 3rd harmonic components. Both simulations and measurements are presented with good agreement.

Flexible and miniaturized power divider

2015 ◽  
Vol 8 (3) ◽  
pp. 547-557 ◽  
Author(s):  
François Burdin ◽  
Florence Podevin ◽  
Philippe Ferrari
Keyword(s):  
Millimeter Wave ◽  
Transmission Lines ◽  
High Performance ◽  
Size Reduction ◽  
Input Port ◽  
Power Divider ◽  
Proof Of Concept ◽  
Millimeter Wave Range ◽  
Measurement Results ◽  
Wave Range

A new flexible and miniaturized power divider (PD), based on the Wilkinson PD topology, is carried out in this paper. Flexibility and size reduction are achieved simultaneously thanks to both an open-stub loading the input port and additional transmission lines (TLines) connecting the output ports to the isolation resistance. Design equations and rules are given. As a proof-of-concept, two PDs working at 2.45 GHz were fabricated and measured. Then, on the basis of the previous developments, a 1:4 power-dividing feeding network was realized. It highlights the high performance and flexibility of the proposed PD. Agreement between simulation and measurement results is very good, for PDs as well as for the feeding network, thus validating the proposed approach. This concept is straightforward to be applied at higher frequencies, in particular in the millimeter-wave range on CMOS technologies, where flexibility in the choice of the TLines characteristic impedances and size reduction are mandatory.

Using Microstrip LPF in Gysel Power Divider for Extreme Size Reduction and Higher Order Harmonic Suppression

Frequenz ◽  
2015 ◽  
Vol 69 (7-8) ◽  
Author(s):  
H. Siahkamari ◽  
S. Vahab A. Makki ◽  
S.-A. Malakooti
Keyword(s):  
Transmission Lines ◽  
Return Loss ◽  
Higher Order ◽  
Power Divider ◽  
Harmonic Suppression ◽  
Harmonic Rejection ◽  
Measurement Results ◽  
Low Pass ◽  
Power Handling Capability ◽  
Low Pass Filters

AbstractThis paper presents a new design of a compact Gysel power divider with harmonic suppression. It comprises six similar low-pass filters in lieu of six conventional transmission lines in the Gysel power divider. Not only does the proposed power divider extremely reduce the occupied area to 22.7% of the conventional Gysel power divider at 900 MHz, but also it features the higher order harmonic rejection. Simulation and measurement results show good insertion loss, return loss, isolation, and wide stopband bandwidth, while maintaining high-power handling capability over the Wilkinson power divider.

scholarly journals A Novel Analytical Design Technique for a Wideband Wilkinson Power Divider Using Dual-Band Topology

Sensors ◽  
2021 ◽  
Vol 21 (19) ◽  
pp. 6330
Author(s):  
Asif I. Omi ◽  
Rakibul Islam ◽  
Mohammad A. Maktoomi ◽  
Christine Zakzewski ◽  
Praveen Sekhar
Keyword(s):  
Transmission Lines ◽  
Return Loss ◽  
Power Divider ◽  
Dual Band ◽  
Design Technique ◽  
Fractional Bandwidth ◽  
Coupled Line ◽  
Analytical Design ◽  
Resonance Frequencies ◽  
Wilkinson Power Divider

In this paper, a novel analytical design technique is presented to implement a coupled-line wideband Wilkinson power divider (WPD). The configuration of the WPD is comprised of three distinct coupled-line and three isolation resistors. A comprehensive theoretical analysis is conducted to arrive at a set of completely new and rigorous design equations utilizing the dual-band behavior of commensurate transmission lines. Further, the corresponding S-parameters equations are also derived, which determine the wideband capability of the proposed WPD. To validate the proposed design concept, a prototype working at the resonance frequencies of 0.9 GHz and 1.8 GHz is designed and fabricated using 60 mils thick Rogers’ RO4003C substrate. The measured result of the fabricated prototype exhibits an excellent input return loss > 16.4 dB, output return loss > 15 dB, insertion loss < 3.30 dB and a remarkable isolation > 22 dB within the band and with a 15 dB and 10 dB references provide a fractional bandwidth of 110% and 141%, respectively.

scholarly journals A New Analytical Design Methodology for a Three-Section Wideband Wilkinson Power Divider

Electronics ◽  
2021 ◽  
Vol 10 (19) ◽  
pp. 2332
Author(s):  
Asif I. Omi ◽  
Zeba N. Zafar ◽  
Hussain Al-Shakhori ◽  
Aubrey N. Savage ◽  
Rakibul Islam ◽  
...  
Keyword(s):  
Transmission Lines ◽  
Power Divider ◽  
Mode Analysis ◽  
Design Technique ◽  
Dual Frequency ◽  
Analytical Design ◽  
Analysis Measurement ◽  
Minimum Requirements ◽  
Wilkinson Power Divider ◽  
Frequency Behavior

In this paper, a new analytical design technique for a three-section wideband Wilkinson power divider is presented. The proposed design technique utilizes the dual-frequency behavior of commensurate transmission lines for the even-mode analysis and contributes a set of completely new and rigorous design equations for the odd-mode analysis. Measurement of a fabricated prototype utilizing the proposed technique shows an excellent return-loss (>16 dB), insertion loss (<3.35 dB), and excellent isolation (>22.7 dB) over 104% fractional bandwidth extending beyond the minimum requirements.

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