An analysis of low pass filter using bowtie Defected Ground Structure (DGS) at 10 GHz for radar application

Taib, S. N.; Othman, Mohd Azlishah; Makhzan, W. N. A.; Arshad, T. S. M.; Yasin, N. Y. M.; Ismail, Mohd Muzafar; Misran, Mohamad Harris; Said, Maizatul Alice Meor; Sulaiman, Hamzah Asyrani; Ramlee, Ridza Azri

doi:10.1109/icici-bme.2013.6698470

Cited by 3 publications

(3 citation statements)

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“…The incessant increase in demand and specification levels of microwave filters for advanced communication systems have necessitated research interest in both industry and academia. Hence, microwave filter designs are becoming very popular [1]- [6].…”

Section: Introductionmentioning

confidence: 99%

“…Maximally flat filter with low order 𝑁 has characteristics such as small filter overshoot, rapid response and bad test precision. High-order maximally flat low-pass filters have good test precision, large overshoot, poor stability and slow response [5]- [6] This filter has a type of construction called reflective filter and consists of capacitive and inductive elements that gives ideally zero reflection loss in the passband region and very high attenuation in the stopband region. An ideal or perfect filter do not exist in practice, to achieve a near ideal filter compromises are made which are inherent in filter design.…”

Section: Introductionmentioning

confidence: 99%

“…An ideal or perfect filter do not exist in practice, to achieve a near ideal filter compromises are made which are inherent in filter design. A perfect filter should have zero insertion loss in the passband, infinite attenuation in the stopband, and in the passband-a linear phase response to avoid signal distortion [6]- [7].…”

Section: Introductionmentioning

confidence: 99%

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Stepped Impedance Microstrip Lowpass Filter Design using Advanced Design Systems

Benjamin¹,

Ainah²,

Enoma³

2021

IJSRP

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This paper describes an advanced design systems (ADS) approach of stepped impedance microstrip low pass filter design for maximally flat or Butterworth responses. The cut-off frequency is 4 GHz with source and load impedances of 50 Ω. The insertion loss at passband is 0.5 𝑑𝐵 and stopband is 20 𝑑𝐵. In this filter design, an order 𝑁 = 7 was chosen for maximally flat (Butterworth) filter prototype. Substrate properties such as relative dielectric constant ∈ 𝑟 = 4.2, loss tangent 𝑡𝑎𝑛𝛿 = 0.02, height of dielectric material ℎ = 2.0 𝑚𝑚 and conductor thickness of 0.01 𝑚𝑚 were used in calculation of the length and width of the transmission line. Design of lumped circuit for microwave filter prototype scaled in frequency and impedances is discussed. Equivalent transmission line was obtained by converting lumped circuit into certain lengths and characteristic impedances. ADS simulation software was used to plot maximally flat filter characteristics. The plots show variation of incident wave 𝑆(1,1) and forward gain 𝑆(1,2) with frequency in 𝐺𝐻𝑧.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%