Journal ArticleDOI
A Compact Broadband Direct Coaxial Line to SIW Transition
Reads0
Chats0
TLDR
In this article, a coaxial line to substrate integrated waveguide (SIW) broadband transition is presented, which directly transforms the TEM mode of coaxial lines to the fundamental TE10 mode of the SIW.Abstract:
In this letter, a novel coaxial line to substrate integrated waveguide (SIW) broadband transition is presented The transition is designed by connecting the inner conductor of a coaxial line to an open-circuited SIW The configuration directly transforms the TEM mode of a coaxial line to the fundamental TE10 mode of the SIW A prototype back-to-back transition is fabricated for X-band operation using a 0508 mm thick RO 4003C substrate with dielectric constant 355 Comparison with other reported transitions shows that the present structure provides lower passband insertion loss, wider bandwidth and most compact The area of each transition is $008\lambda _{g}^{2}$ where $\lambda _{g}$ is the guided wavelength at passband center frequency of $f_{0}= 105$ GHz Measured 15 dB and 20 dB matching bandwidths are over 48% and 20%, respectively, at $f_{0}$ read more
Citations
More filters
Journal ArticleDOI
Substrate-Independent Microwave Components in Substrate Integrated Waveguide Technology for High-Performance Smart Surfaces
TL;DR: In this paper, the authors proposed a substrate-independent AFSIW manufacturing technology, enabling straightforward integration of high-performance microwave components into a wide range of general-purpose commercially available surface materials by means of standard additive (3-D printing) or subtractive (computer numerically controlled milling/laser cutting) manufacturing processes.
Journal ArticleDOI
Substrate Integrated Waveguide Filter–Amplifier Design Using Active Coupling Matrix Technique
Yang Gao,Fan Zhang,Xin Lv,Cheng Guo,Xiaobang Shang,Lei Li,Jiashan Liu,Yuhuai Liu,Yi Wang,Michael J. Lancaster +9 more
TL;DR: The feedback between gate and drain, which is neglected in a previous work, is considered, which improves the accuracy of the coupling matrix model for transistors, and the relationship between the coupling matrices and the noise figure is established, which extends the coupling Matrix method to tackle noise-related circuit functions.
Journal ArticleDOI
Studi Transisi Saluran Transmisi Planar – Substrate Integrated Waveguide
TL;DR: Substrate Integrated Waveguide (SIW) adalah saluran transmisi ying mampu menghantarkan sinyal frekuensi tinggi dengan kerugian yang kecil, tetapi memiliki kemampuan mengintegrasikan banyak komponen.
Journal ArticleDOI
A Broadband Coaxial Line-to-SIW Transition Using Aperture-Coupling Method
TL;DR: In this article , the authors demonstrate a coaxial transmission line-to-substrate integrated waveguide (CT-SIW) transition using aperture-coupling approach, which broadens the bandwidth and reduces the transition insertion loss.
Journal ArticleDOI
A Novel Center-Fed SIW Inclined Slot Antenna for Active Phased Array
TL;DR: In this article, a center-fed substrate integrated waveguide (SIW) inclined slot array antenna is designed for a one-dimensional active phased array and a novel coaxial-to-SIW transition is employed to realize the central feed for enhancing bandwidth.
References
More filters
Journal ArticleDOI
New Wideband Transition From Microstrip Line to Substrate Integrated Waveguide
TL;DR: In this paper, a new wideband transition from microstrip line to substrate integrated waveguide (SIW) is introduced, which achieves return losses better than 30 dB in standard waveguide frequency bands from X to E.
Journal ArticleDOI
A Coaxial Line to Post-Wall Waveguide Transition for a Cost-Effective Transformer between a RF-Device and a Planar Slot-Array Antenna in 60-GHz Band
TL;DR: Interfaces between a coaxial structure and a post-wall waveguide are proposed as the essential components for cost-effective millimeter-wave modules and the reflection and the transmission characteristics are investigated.
Proceedings ArticleDOI
Unloaded quality factor of a substrate integrated waveguide resonator and its variation with the substrate parameters
TL;DR: In this paper, the variation of the unloaded Quality Factor (QUF) of a substrate integrated waveguide (SIW) resonator with the substrate parameters is presented, and it is observed that the QU strongly depends on substrate thickness, dielectric constant and loss tangent values.
Proceedings ArticleDOI
Design of Low-Cost non-radiative SMA-SIW Launchers
TL;DR: In this paper, an effective transition between coaxial and substrate integrated waveguides (SIWs), providing also a method for its design, is presented, which is not affected by energy leakage, due to unwanted radiation, and features an adequate bandwidth for many significant applications, e.g. antennas and filters.
Proceedings ArticleDOI
Design of a broadband coaxial to substrate integrated waveguide (SIW) transition
TL;DR: In this article, a two-port SIW section using back-to-back configuration of the proposed transition is designed to operate at X-band (8-12 GHz), and measured result shows a broad bandwidth (30%) and an insertion loss of 1.2 dB in the operating band.