Varactor-Tuned Microstrip Bandpass Filter With Loop Hairpin and Combline Resonators

Захаров, А. В.; Rozenko, Sergii; Ilchenko, M. E.

doi:10.1109/tcsii.2018.2873227

Cited by 48 publications

(15 citation statements)

References 8 publications

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“…However, they have the same resonant frequencies. The proposed filters are 3rd order Chebyshev Tx, and Rx filters with a high roll-off compared to that in literature [28][29][30][31][32][33][34] which have at least similar order or higher. The filters exhibit narrow fractional bandwidth of 0.0444, and 0.0337, respectively compared to those in literature [28][29][30][31][32][33][34].…”

Section: Final Optimization and Fine Tuningmentioning

confidence: 99%

An Improved S-Band CubeSat Communication Subsystem Design and Implementation

et al. 2021

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In the past decade, the majority of the launched satellites have a weight exceeds 1 Ton. Its development takes a long time, high cost, and has a large risk of failure, and does not allow for testing new technologies to avoid the mission's failure. From these points of view, space-tested technologies were preferred to mitigate the risk of failure. Our goal is to build and test our own S-band communication subsystem for CubeSat. The system should be developed with reliable and compact hardware and flexible and efficient software. It consists of passive components such as the antennas and the filters and other active components. The passive components are designed, fabricated and measured while the active components are based on commercial components. In this paper, two antenna boards are designed; one board faces the earth and the other board lies on the opposite side. Each board has two antennas; transmitter and receiver antennas. The transmitter/receiver antennas are operating in the downlink /uplink at frequency bands from 2.2 GHz to 2.29 GHz and from 2.025 GHz to 2.11 GHz, respectively. This configuration keeps the communication between the CubeSat and the ground station to facilitate the de-tumbling process of the CubeSat. The second component is the filters that separate the transmitter from the receiver. The two filters have high roll off and narrow fractional bandwidth within a compact area. The transceiver system is based on the analog devices chip AD9361 controlled by zynq-7000 FPGA. The output RF signal is amplified to approach 33dBm output power to the antenna port via QORVO chip that operates in the range from 700MHz to 2700MHz. The antennas and filters are fabricated and tested where good results are noticed so that they are ready for integrating with the whole CubeSat communication subsystem. INDEX TERMS CubeSat, S-band antenna, hairpin filter, transceiver system, FPGA, and Satellite.

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Section: Final Optimization and Fine Tuningmentioning

confidence: 99%

An Improved S-Band CubeSat Communication Subsystem Design and Implementation

et al. 2021

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“…Microstrip technology has been widely adopted in many RF and microwave devices in numerous wireless applications due to its cost effectiveness, smallness and desired frequency responses. Microstrip devices may include microstrip filters [1][2][3][4][5][6][7], microstrip diplexers [8,9] and microstrip antennas [10][11][12][13][14][15]. In recent years, specifically, bandpass filters (BPFs) have a significant role in modern wireless mobile communication systems.…”

Section: Introductionmentioning

confidence: 99%

“…effective relative dielectric constant εe, designed for BPF is computed based on (2) [28]: Investigation of dualband fan-shaped microstrip bandpass filter (Seevan F. Abdulkareem) 231 Even so, e in this research work has was determined via an approximated equation as[1,2]: Topology of proposed dual-band filter…”

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confidence: 99%

Investigation of dualband fan-shaped microstrip bandpass filter

Abdulkareem¹,

Faydh²,

Al-Nuaimi³

2021

TELKOMNIKA

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In this study, design and simulation of microtrip bandpass filter is presented using RT/Duroid 6010.2 lm substrate. This filter has fan-shaped topology with small dimensions of 12x12 mm 2 , designed for dual band frequencies at 3.41 and 6.14 GHz. The insertion loss and return loss of initial band at 3.41 GHz are-0.7 and-38.224 dB respectively and its bandwidth ranged from 3.3561 to 3.48 GHz. On the other hand, for 2 nd band at 6.14 GHz, the insertion loss and return loss have been-1.377 and-14 dB respectively with bandwidth ranged from 6.0951 to 6.1782 GHz.

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“…These systems have already been widely applied for industrial, commercial, residential and military purposes. However, improving their performances, reducing complexities, and cost of design and manufacturing represent mainly key elements as part of an industrial process for equipment supporting radiofrequency devices [1][2][3][4][5]. Which presupposes the use and implementation of techniques to optimize, miniaturize and improve the microwave circuits constituting these systems to ensure excellent and precise transmission and/or reception [6][7][8][9][10][11].…”

Section: Introductionmentioning

confidence: 99%

Band-pass filter based on complementary split ring resonator

Nasiri¹,

Ennajih²,

Errkik³

et al. 2020

TELKOMNIKA

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This letter presents a new circuit of the band-pass filter designed by using microstrip technology. Based on complementary split ring resonator and various series of optimization technic and a specific design method, a miniature band-pass filter with excellent electrical performances is achieved. First of all, the metamaterial unit cell is studied to obtain a desired resonant frequency and it is implemented in the ground plan in order to increase the characteristics of the bandpass behavior and decrease its operating frequencies. This proposed circuit is designed on an FR-4 substrate having a relative permittivity of 4.4 tangential losses of 0.025 and thickness of 1.6 mm. This filter is developed by using CST Microwave. The obtained features allow this filter to be used in diverse wireless applications such as IMT-E and WiMax.

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Varactor-Tuned Microstrip Bandpass Filter With Loop Hairpin and Combline Resonators

Cited by 48 publications

References 8 publications

An Improved S-Band CubeSat Communication Subsystem Design and Implementation

An Improved S-Band CubeSat Communication Subsystem Design and Implementation

Investigation of dualband fan-shaped microstrip bandpass filter

Band-pass filter based on complementary split ring resonator

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