Direct synthesis of transmission line low-/high-pass filters with series stubs

Li, R.; Sun, Sheng; Li, Zhu

doi:10.1049/iet-map.2008.0259

Cited by 13 publications

(11 citation statements)

References 10 publications

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“…The filter proposed in [10] was redesigned to the structure situated on the paper substrate. The simulated and measured characteristics of the scattering parameters versus frequency are illustrated in Figures 14 and 15.…”

Section: Filter Structurementioning

confidence: 99%

“…In this paper, we investigate the modified version of two microwave devices. The first one is a broadband coplanar antenna proposed in [8,9] with reduced dimensions, while the second one is a low-pass filter, the structure of which was proposed in [10]. In both cases, the modifications consider both the reduction and the absence of a dielectric substrate.…”

Section: Introductionmentioning

confidence: 99%

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Coplanar Waveguide-Fed Broadband Microwave Devices with (or without) a Thin Dielectric Substrate for Use in Flexible Electronic Systems

Lech

Marynowski

Kusiek

et al. 2014

International Journal of Antennas and Propagation

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Two examples of microwave devices, fed by a coplanar waveguide and realized on a thin substrate (or without such a substrate), are employed to investigate the influence of devices’ curvatures and the proximity of different materials on their parameters. To perform the tests, a broadband antenna and a low-pass filter are chosen. A feeding coplanar waveguide is realized on a dielectric material brick attached to an SMA connector and the main device structure is placed in the air or on a thin substrate. The utilization of a thin substrate or its removal from the structure gives rise to the possibility of placing the devices on curved surfaces. The investigated devices are redesigned and manufactured. The antenna has a total size of 46 mm × 44 mm and covers a frequency range of 2.4–35 GHz which gives a 174% fractional bandwidth. The filter has a total size of 50 mm × 80 mm and its bandwidth has a cutoff frequency of 3.4 GHz. The obtained results are verified by measurements and good agreement is achieved.

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Section: Filter Structurementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Coplanar Waveguide-Fed Broadband Microwave Devices with (or without) a Thin Dielectric Substrate for Use in Flexible Electronic Systems

Lech

Marynowski

Kusiek

et al. 2014

International Journal of Antennas and Propagation

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show abstract

“…Further, its stop band characteristic also diminishes due to inherited resonating property of open loop resonator. Apart from this, the microstrip low-pass filter using different techniques has also been analyzed in [11][12][13][14][15] but they have their own advantages and disadvantages. In the recent past, a filter using simple structure and parallel coupling of microstrip transmission lines was proposed [16] which may be well suited for modern filter design requirement.…”

Section: Introductionmentioning

confidence: 99%

Microstrip Low-Pass Filter Using Hexagonal Patch with Wide Stopband

Jha

Singh

2011

2011 International Conference on Communication Systems and Network Technologies

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In this present paper, a microstrip low-pass filter using hexagonal capacitive patch with the upper cut-off frequency equal to 2 GHz is analyzed and designed. The proposed filter shows significant reduction in the effective area on the substrate along with an improved pass-band performance and a wide stop-band. To verify the analysis, the structure has been simulated using two popular software packages: a) IE3D and b) Sonnet Lite both based on the method of moments technique and the performance of the filter is in the good agreement.

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“…From the discussion in [3], open-circuited steppedimpedance MMR has been successfully used to design a single-band ultra-wideband (UWB) BPF. After that, a synthesis method for this class of filters has been proposed and used for several UWB filter designs [12]- [13]. As its counterpart, the short-circuited stepped-impedance MMR has also been used to achieve similar filtering responses, which would be discussed later.…”

Section: Synthesis Methodsmentioning

confidence: 99%

Synthesis and design of planar microstrip bandpass filters with multi-mode resonators

Zhang¹

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Thousands of thanks go to my supervisor, Prof. Lei Zhu, who has professionally and patiently guided my research work for my study in the school and also kindly give me much help and advice with his wise understanding for a meaningful life. It is really a memorable journey to work under his direction for the past three years. These great things like introducing the research mythology of my topic, working with me to solve difficulties and enlightening me with his past experience are always kept in my mind. Also, great appreciate Prof. Lu Yilong, who has helped me a lot for my final stage of Ph.D. studying. Besides, there is an obligation to appreciate other professors in our lab. During their courses, I grasp the most fundamental concepts and rules, which turn out to be extremely helpful to my next research work. Their diverse research backgrounds broaden my understanding of the electromagnetic field. Next, I feel much grateful towards my friends, lab mates and technicians in the Communication Research Lab, who have companied me to go through a very happy time. The laughter with you adds a vivid color to my hard time and the discussion with you clears my minds to find the solutions. Finally, I would like to express my sincere thanks to Nanyang Technology University for providing me this precious opportunity and the financial support to carry on my Ph. D. study.

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Direct synthesis of transmission line low-/high-pass filters with series stubs

Cited by 13 publications

References 10 publications

Coplanar Waveguide-Fed Broadband Microwave Devices with (or without) a Thin Dielectric Substrate for Use in Flexible Electronic Systems

Coplanar Waveguide-Fed Broadband Microwave Devices with (or without) a Thin Dielectric Substrate for Use in Flexible Electronic Systems

Microstrip Low-Pass Filter Using Hexagonal Patch with Wide Stopband

Synthesis and design of planar microstrip bandpass filters with multi-mode resonators

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