Miniaturized microstrip diplexer with high performance using a novel structure for wireless L-band applications

Rezaei, Abbas; Noori, Leila

doi:10.1007/s11276-018-1870-5

Cited by 10 publications

(4 citation statements)

References 22 publications

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“…The diplexer can be applied in the future expansion of the spectrum of the new 5G and beyond mobile communications standards. The designed diplexer is based on a classical design, other more advanced designs as the ones proposed for low frequencies in [55,56] could be also translated in the proposed IMGW technology. The diplexer works for two channels at 24 GHz and 28 GHz, with a bandwidth of approximately 1 GHz and the lowest possible ripple in the passband.…”

Section: Discussionmentioning

confidence: 99%

Ka-Band Diplexer for 5G mmWave Applications in Inverted Microstrip Gap Waveguide Technology

2020

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A new cost-efficient, low-loss Ka-band diplexer designed in inverted microstrip gap waveguide technology is presented in this paper. Gap waveguide allows to propagate quasi-TEM modes in the air between two metal plates without the need for contact between them by using periodic metasurfaces. The diplexer is realized by using a bed of nails as AMC (Artificial Magnetic Conductor), first modeled with a PMC (Perfect Magnetic Conductor) surface for design simplification, and two fifth order end-coupled passband filters (BPFs) along with a power divider. The experimental verification confirms that the two channels centered at 24 GHz and 28 GHz with 1 GHz of bandwidth show measured insertion losses of 1.5 dB and 2 dB and 60 dB of isolation between them. A slight shift in frequency is observed in the measurements that can be easily explained by the variation in the permittivity of the substrate.

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Section: Discussionmentioning

confidence: 99%

Ka-Band Diplexer for 5G mmWave Applications in Inverted Microstrip Gap Waveguide Technology

2020

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“…The filter has a meandered line resonator, SIR elements, UIR elements, and three feed lines. A high-performance microstrip diplexer utilizing connected triangular microstrip cells is presented here in [29]. Using frequencies of 1 GHz and 1.3 GHz, it is fully compatible with L-band networks.…”

Section: Two-channel Diplexermentioning

confidence: 99%

A Survey on microstrip filters, diplexers, and triplexers state of art between 2018 and 2022

Juan H. Namdar,

Mohammed Q. Mohammed,

Waleed Y Hussein

2023

BJN

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Communication plays an important role in life these days. Communications interfere in many applications, for example, military, medical and community systems. Communications have brought the world closer. This article shows a state of art of previous studies about many devices used in communication systems. These devices are categorized under the term microstrip devices.Filters, Diplexers, and Triplexers will be the scop

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“…The patch and thin cells are combined in (Rezaei, Yahya and Jamaluddin, 2020) for designing a microstrip diplexer, which is suitable for GSM applications. The reported diplexers in (Zhou, et al, 2018;Rezaei and Noori, 2020;Danaeian, 2020;Roshani and Roshani, 2019; have narrow channels. On the other hand, the common problem of the microstrip diplexers in (Feng, Zhang and Che, 2017;Huang, et al, 2016;Rezaei and Noori, 2018;Kumar and Upadhyay, 2019;Rezaei, Yahya and Jamaluddin, 2020;Zhou, et al, 2018;Rezaei and Noori, 2020;Danaeian, 2020;Roshani and Roshani, 2019; is their large implementation areas.…”

Section: Introductionmentioning

confidence: 97%

A Compact Negative Group Delay Microstrip Diplexer with Low Losses for 5G Applications

Nouri,

Yahya,

Rezaei

et al. 2023

ARO

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Microstrip Diplexers play an important role in modern wireless communication systems. In this paper, a novel compact microstrip diplexer based on spiral cells is presented. The proposed resonator primarily consists of two spiral thin lines connected to a pair of coupled lines. This novel resonator is analyzed mathematically to find its behavior and tune the dimensions of the final layout easily. Using the analyzed resonator, two bandpass filters (BPFs) are designed. Then, a novel high-performance microstrip diplexer is obtained by designing and integrating these two BPFs. The center frequencies of the first and second channels of the proposed diplexer are 1.86 GHz and 4.62 GHz, respectively. The proposed diplexer boasts a remarkably small size of 0.004 λg2 and features flat channels with low insertion losses of only 0.048 dB and 0.065 dB for the first and second channels, respectively. The maximum group delays of S21 and S31 are 0.31 ns, 0.86 ns, respectively, which are good values for a modern communication system. Meanwhile, inside its passbands for some frequency ranges, its group delays are negative. Thus, using this diplexer can decrease the signal dispersion. The 1st and 2nd passbands are wide with 47.3% and 47.1% fractional bandwidths (FBW), respectively. Therefore, this diplexer can be easily and successfully used in designing high-performance RF communication systems.

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Miniaturized microstrip diplexer with high performance using a novel structure for wireless L-band applications

Cited by 10 publications

References 22 publications

Ka-Band Diplexer for 5G mmWave Applications in Inverted Microstrip Gap Waveguide Technology

Ka-Band Diplexer for 5G mmWave Applications in Inverted Microstrip Gap Waveguide Technology

A Survey on microstrip filters, diplexers, and triplexers state of art between 2018 and 2022

A Compact Negative Group Delay Microstrip Diplexer with Low Losses for 5G Applications

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