Design of compact microstrip branch line coupler using semi-circular and rectangular resonators with wide range suppressed harmonics

Naderi, Mehrdad; Abbasi, Hamed

doi:10.1016/j.aeue.2017.11.031

Cited by 17 publications

(7 citation statements)

References 19 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Komponen-komponen dan litar berprestasi tinggi secara meluas digunakan dalam sistem komunikasi frekuensi radio dan gelombang mikro moden. Komponen ini terutamanya meliputi litar aktif seperti penguat kuasa [1] dan litar pasif seperti pengganding [2], pembahagi kuasa [3] dan penapis jalur (BPF) [4]. Reka bentuk BPFs adalah sangat diperlukan untuk memenuhi permintaan spesifik pengguna elektronik dan aplikasi perindustrian.…”

Section: Pengenalanunclassified

Nested Circular Elliptical Shaped Mixed Loop Resonator Based Bandpass Filter for Microwave Applications / Penapis Jalur Berasaskan Campuran Gegelung Penyalun Berbentuk Sarang Bulat Untuk Aplikasi Gelombang Mikro

et al. 2020

View full text Add to dashboard Cite

An elliptical thumb printed nested circular mixed loop resonator (MLR) is introduced in this article to design a multiple bandpass filter for microwave applications. The proposed structure is composed of a series of loop resonators on a Rogers RT-5880 dielectric substrate, where the overall system is developed into a 377Ω framework. Similar structure is designed on both sides of the substrate and an investigation is made on scattering parameters, relative permittivity, permeability, refractive index and current distributions. The 12 ´ 14 mm2 structure is designed and evaluated by a simulation software CST microwave studio and the metamaterial characteristics have been classified by Nicolson-Ross-Weir method at the filtering frequencies. The proposed filter shows resonances at 2.65 GHz, 5.85 GHz, 7.12 GHz, and 8.59 GHz, and the measured results are compared with the simulated ones. With a favorable design and double-negative characteristics, this design is suitable for multiple bandpass filter particularly for S, C, and X-band applications.

show abstract

Section: Pengenalanunclassified

Nested Circular Elliptical Shaped Mixed Loop Resonator Based Bandpass Filter for Microwave Applications / Penapis Jalur Berasaskan Campuran Gegelung Penyalun Berbentuk Sarang Bulat Untuk Aplikasi Gelombang Mikro

et al. 2020

View full text Add to dashboard Cite

show abstract

“…The conventional branchline coupler consists of four quarter-wavelength transmission lines and offers a single passband. Several methods have been utilized to realize harmonic suppression in single-band branchline couplers [1][2][3][4][5][6][7]. In [1], a coupled-line section was used to achieve a compact size and spurious rejection.…”

Section: Introductionmentioning

confidence: 99%

“…Multiple asymmetric π-shaped structures [2] and H-shaped structures [3] were utilized to realize a compact size and harmonic suppression. Resonators with an interdigital structure [4], radial-shaped resonators [5], closed-loop, open-loop resonators [6], and stepped impedance resonators [7] have been used to achieve the proposed couplers. In [8][9][10][11][12][13], dual-band branch-line couplers were proposed.…”

Section: Introductionmentioning

confidence: 99%

A Dual-Band Branch-Line Coupler with Ultra-Wideband Harmonic Suppression

Zhang

Lee

2023

J. Electromagn. Eng. Sci

View full text Add to dashboard Cite

A dual-band branch-line coupler with ultra-wideband harmonic suppression is proposed in this paper. The conventional quarter-wavelength transmission lines are replaced with π-shaped lines to achieve a dual band. In addition, ultra-wideband harmonic suppression is obtained by the frequency-selecting coupling structure (FSCS) providing three transmission zeros. The two operating frequencies are 0.9 GHz and 2.0 GHz, and the corresponding -10 dB bandwidth at 0.9 GHz and 2.0 GHz is 18.9% and 10.5%, respectively. A wide harmonic suppression band is generated from 3.7 GHz to 8.3 GHz. The simulation and measurement results are in good agreement.

show abstract

“…In this regard, the implementation of RF components and the use of metamaterials can have a significant impact on the sensor technology [1–2]. These elements mainly include power amplifiers [3] as active circuits and couplers [4], power dividers [5] and bandpass filters (BPFs) [6] as passive circuits. Designing BPFs is essential to meet the specific needs of industrial applications and consumer electronics.…”

Section: Introductionmentioning

confidence: 99%

Left-handed metamaterial bandpass filter for GPS, Earth Exploration-Satellite and WiMAX frequency sensing applications

et al. 2019

View full text Add to dashboard Cite

Interferences and accuracy problem are one of the most talked issues in today’s world for sensor technology. To deal with this contention, a microstrip framework consisting of a dual mode double negative (DNG) metamaterial based bandpass filter is presented in this article. To obtain the ultimate noise reduction bandpass filter, the proposed structure has to go through a series of development process, where the characteristics of the structure are tested to the limit. This filter is built on Rogers RT-5880 substrate with a 50Ω microstrip line. To pursue the elementary mode of resonant frequency, the ground layer of the structure is kept partially filled and a gradual analysis is executed on the prospective metamaterial (resonator) unit cell. Depending on the developed unit cell, the filter is constructed and fabricated to verify the concept, concentrating on GPS (1.55GHz), Earth Exploration-Satellite (2.70GHz) and WiMAX (3.60GHz) bands of frequencies. Moreover, the structure is investigated using Nicolson–Ross–Weir (NRW) approach to justify the metamaterial characteristics, and also tested on S-parameters, current distribution, electric and magnetic fields and quality factor. Having a propitious architecture and DNG characteristics, the proposed structure is suitable for bandpass filter for GPS, Earth Exploration-Satellite and WiMAX frequency sensing applications.

show abstract

Design of compact microstrip branch line coupler using semi-circular and rectangular resonators with wide range suppressed harmonics

Cited by 17 publications

References 19 publications

Nested Circular Elliptical Shaped Mixed Loop Resonator Based Bandpass Filter for Microwave Applications / Penapis Jalur Berasaskan Campuran Gegelung Penyalun Berbentuk Sarang Bulat Untuk Aplikasi Gelombang Mikro

Nested Circular Elliptical Shaped Mixed Loop Resonator Based Bandpass Filter for Microwave Applications / Penapis Jalur Berasaskan Campuran Gegelung Penyalun Berbentuk Sarang Bulat Untuk Aplikasi Gelombang Mikro

A Dual-Band Branch-Line Coupler with Ultra-Wideband Harmonic Suppression

Left-handed metamaterial bandpass filter for GPS, Earth Exploration-Satellite and WiMAX frequency sensing applications

Contact Info

Product

Resources

About