Abstract
A Dualband Pass Frequency Selective Structure (DPSFSS) with miniaturized elements is proposed in this article. The miniaturized elements induce high inductance and capacitance values. The meandered line concept is used which extensively increases inductance of the dipole element. Very large capacitance is obtained between two meandered elements which have wide common area perpendicular to electric field for wave propagating in Z-direction. Two pass band poles and two zeros are obtained by perpendicular arrangement of meandered patterns on two sides of the substrate. Orthogonal arrangement of patterns ensure polarization symmetry (polarization insensitive) for Transverse Electric (TE) and Transverse Magnetic (TM) modes of exciting wave. Two pass band pole frequencies are positioned at 1.84 GHz and 4.53 GHz with low Insertion Losses (IL) of 0.67 dB and 1 dB, respectively. The lower and higher frequency bands have factional bandwidths of 41 % and 46 %, respectively. The transmission nulls occupy 2.8 GHz and 6.58 GHz frequencies. The structure is miniaturized to 0.032λ0 × 0.032λ0 dimensions with respect to lowest resonance residing at 1.83 GHz. The low IL at both pass bands is realized despite of using a lossy FR-4 material that can be improved to less than 0.5 dB at both the bands using less lossy materials such as F4BME or RO4003C. The proposed DPSFSS design is elaborated using Equivalent Circuit Model (ECM) and Surface Current Distribution (SCD). Measurements are performed on fabricated DPSFSS prototype and it is observed that the measured results coincide well with the simulated response. Angle stability of the DPSFSS is excellent and no unwanted resonances are observed at oblique angles upto 80° for dual polarizations of wave.
Acknowledgment
We are thankful to Nanjing University of Aeronautics and Astronauts for the financial support of the prototype fabrication and measurements.
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Research ethics: The proposed work as whole is our contribution. Copyrights are transferred to Frequenz journal.
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Author contributions: The first author of the article has published 27 SCI and conference papers.
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Competing interests: The authors state no conflict of interests.
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Research funding: There is no funding agency source for this article. However, the fabrication and measurements are funded by Nanjing University of Aeronautics and Astronauts.
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Data availability: The paper is published as closed access. Rest is according to journals data availability policy.
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© 2024 Walter de Gruyter GmbH, Berlin/Boston
Artikel in diesem Heft
- Frontmatter
- Research Articles
- New indoor propagation model proposed for future B5G/6G rollout
- A miniaturized dual band pass frequency selective surface insensitive to oblique angles and polarizations of wave
- Design and equivalent circuit modelling of super compact ultrathin metamaterial absorber for microwave frequency Regime
- 3D printed circularly polarized implantable antenna with wideband impedance matching
- Design and investigation of cavity backed bowtie antenna with unidirectional radiation pattern using characteristic mode analysis
- A compact dual-element UWB-MIMO antenna with single band-notched characteristics
- Design and analysis of four leaf clover shaped MIMO antenna for Sub-6 GHz V2X applications
- The design and decoupling of TX/RX antenna with omnidirectional conical beam operating at V band
- Integration of two dual-port substrate integrated waveguide based MIMO antennas on a common substrate for 5G millimeter wave applications
- Antipodal vivaldi array MIMO antenna for 5G FR2 applications at 28 GHz with improved isolation
Artikel in diesem Heft
- Frontmatter
- Research Articles
- New indoor propagation model proposed for future B5G/6G rollout
- A miniaturized dual band pass frequency selective surface insensitive to oblique angles and polarizations of wave
- Design and equivalent circuit modelling of super compact ultrathin metamaterial absorber for microwave frequency Regime
- 3D printed circularly polarized implantable antenna with wideband impedance matching
- Design and investigation of cavity backed bowtie antenna with unidirectional radiation pattern using characteristic mode analysis
- A compact dual-element UWB-MIMO antenna with single band-notched characteristics
- Design and analysis of four leaf clover shaped MIMO antenna for Sub-6 GHz V2X applications
- The design and decoupling of TX/RX antenna with omnidirectional conical beam operating at V band
- Integration of two dual-port substrate integrated waveguide based MIMO antennas on a common substrate for 5G millimeter wave applications
- Antipodal vivaldi array MIMO antenna for 5G FR2 applications at 28 GHz with improved isolation