Microstrip diplexer design based on two square open loop bandpass filters for RFID applications

Tizyi, Hafid; Riouch, Fatima; Tribak, Abdelwahed; Najid, Abdellah; Mediavilla, A.

doi:10.1017/s1759078718000314

Cited by 14 publications

(13 citation statements)

References 16 publications

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“…In Table 4, f o1 and f o2 are the first and second resonance frequencies of bandpass-bandpass diplexers. In the comparison Table, references [15][16][17][18] are bandpass-bandpass diplexers, which have larger dimensions and higher losses in comparison with authors' work while the authors could attenuate the harmonics better than them. However, because of their more comfortable designs, the channels of bandpass-bandpass diplexers are closer than lowpass-bandpass diplexers.…”

Section: Simulation and Measurement Resultsmentioning

confidence: 99%

“…A matching circuit consisting of two coupled transmission lines with different widths are utilised to integrate the resonators. Several types of bandpass-bandpass diplexers are reported in [13][14][15][16]. Due to the decrease in insertion losses at both channels, the proposed diplexer in [13] is a suitable structure for RF energy harvesting.…”

Section: Introductionmentioning

confidence: 99%

“…However, it could not attenuate the harmonics, while it occupies a large area. Similar to this diplexer, the other bandpass–bandpass diplexers in [14–16] could not solve the problem of large physical dimensions. In [14], the magnetically coupled microstrip open–loop resonators are integrated to obtain two balanced–to–balanced planar diplexers.…”

Section: Introductionmentioning

confidence: 99%

“…On the other hand, the fourth–order diplexer has a very large size. Similar to [14], the designing method in [15] is based on a combination of open–loop bandpass resonators. Hence, it cannot attenuate the third harmonic, while it has high insertion losses.…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Design of a high–performance lowpass–bandpass diplexer using a novel microstrip structure for GSM and WiMAX applications

Hayati

Rezaei

Noori

2019

IET Circuits, Devices & Systems

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In this work, a lowpass-bandpass diplexer is proposed based on a novel microstrip structure. This diplexer includes two lowpass and bandpass filters integrated by a simple transmission line. The lowpass channel has a cutoff frequency at 1.88 GHz, which makes it suitable for GSM applications. The resonance frequency of the bandpass channel is 3.56 GHz for IEEE 802.16 WiMAX applications. In comparison with the previously reported lowpass-bandpass diplexers, the proposed design has the lowest insertion and return losses at both channels while it occupies the most compact implementation area of 0.03 λg 2. The designed diplexer can suppress the harmonics up to 4.45F C with a maximum harmonic level of −20 dB, where F C is the cutoff frequency of the lowpass channel. The lowpass channel has a very sharp roll-off of ξ = 220, while the bandpass channel has a high selectivity with a high fractional bandwidth of 23.8%. To verify the design method and simulation results, the designed diplexer is fabricated and measured. The simulated and measured results are in a good agreement.

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Section: Simulation and Measurement Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Design of a high–performance lowpass–bandpass diplexer using a novel microstrip structure for GSM and WiMAX applications

Hayati

Rezaei

Noori

2019

IET Circuits, Devices & Systems

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“…In particular, when government departments, social groups and economic organizations have to publish any information of fixed content in a timely way, fixed standard and fixed format, and wired networks, wireless networks and media copies may not be safe enough for such purposes: this kind of communication will ensure safe transmission. OBC refers to a special way of communication to transmit messages between networks by employing basic principles of computer application, optical principles of barcode technology (e.g., RFID technology) [1][2][3], and micro-range wireless communication (e.g., NFC technology) [4][5][6][7]. This method is safe, reliable and practical, and addresses the concerns of government departments, social groups, and economic organizations about communication security.…”

Section: Introductionmentioning

confidence: 99%

Theoretical Re-Study on One-Way Barcode Communication Between Networks and Its Application Prospects

Yang¹

2018

IJICS

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Information communication between networks is greatly growing, and its security becomes more important. In this article, a new way of network security communication, namely bar code communication was investigated. It used the general principle of the computer to quantify the information and generate the barcode instantly, and it was showed by using the micro-display. Then the micro-camera is used to identify the barcode on the display to restore the original information in the optical principle. Faster and more efficient communication technologies, such as the principle of macro wireless communication technology, can receive complete information to achieve the purpose of information transmission. The bar code information communication method was one-way and irreversible, and it was safe and can ensure communication security between networks. It is the fourth communication method different from wired, wireless and medium modes: one-way bar code communication mode (referred to as "one-way communication").Communication refers to the exchange and transmission of information between persons, or between humans and the nature of that transmission through a certain action or medium. In a broad sense, it may be that two or more parties, in need of information, voluntarily adopt any method or medium to transfer messages from one party to any other party, accurately and safely [8]. In short, the process of message transmission is the transmission or exchange of information from one point to another through a certain medium. The purpose is to realize information transmission or exchange; in other words, communication is the transmission or exchange of information in some way between different subjects. In this sense, any transmission or exchange of information from one subject to another, regardless of the method or way of communication employed, is "communication". Now, signals passing through channels could be languages, sounds, words, images or data, constituting multimedia communication. With wired and wireless communication facilities, integrated with communications in the broad sense, e.g., television and computer networks, have now developed information ports and high-speed channels. Thanks to the use of single-photon and optical amplifiers, communication rates can be raised to 2Mbps or even higher. It's safe to say, the communication rate, in the future, may be something we cannot predict or describe now. Barcode CommunicationBarcode communication refers to a special way of communication to transmit messages between networks or subjects, by employing basic principles in computer application and optical principles of barcode technology. It is a communication method that uses an RFID reader to read and collect barcode information, and verify that information artificially [2]. Barcode, generally speaking, refers to a onedimensional code and a two-dimensional code. The most common application of this one-dimensional code communication in our daily life is the barcode scanner to check goods in the supermarket, and the two...

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Highly narrowband miniaturized microstrip diplexer for qubit mobile communication networks utilizing SIR and T-shaped resonators with negative group delay performance

Mezaal,

Ghazi,

Khaleel

2024

Opt Quant Electron

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Microstrip diplexer design based on two square open loop bandpass filters for RFID applications

Cited by 14 publications

References 16 publications

Design of a high–performance lowpass–bandpass diplexer using a novel microstrip structure for GSM and WiMAX applications

Design of a high–performance lowpass–bandpass diplexer using a novel microstrip structure for GSM and WiMAX applications

Theoretical Re-Study on One-Way Barcode Communication Between Networks and Its Application Prospects

Highly narrowband miniaturized microstrip diplexer for qubit mobile communication networks utilizing SIR and T-shaped resonators with negative group delay performance

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