Broadband Transition between Substrate Integrated Waveguide (SIW) and Rectangular Waveguide for Millimeter-Wave Applications

2011 ◽  
Vol 130-134 ◽  
pp. 1990-1993 ◽  
Author(s):  
Kuang Da Wang ◽  
Wei Hong ◽  
Ke Wu
Keyword(s):  
Millimeter Wave ◽  
Rectangular Waveguide ◽  
Return Loss ◽  
Substrate Integrated Waveguide ◽  
Full Wave ◽  
Vertical Transition ◽  
W Band ◽  
Relative Bandwidth ◽  
Is Design ◽  
Better Than

In this paper, a broadband and simple vertical transition between substrate integrated waveguide and standard air-filled rectangular waveguide is design and experimentally verified. From full-wave simulation of the structure, a relative bandwidth of 19.5% in W-band with return loss better than 20dB is reached. Then, five copies of back-to-back connected transitions are fabricated on RT/Duroid 5880 substrate. The experimental results show that the transition pairs have an average of 15% relative bandwidth with return loss better than 12dB and insert loss lower than 1.2dB. To explain the differences between simulated and tested results, an error analysis is presented.

A wideband right-angle transition between thin substrate integrated waveguide and rectangular waveguide based on multi-section structure

2015 ◽  
Vol 8 (2) ◽  
pp. 185-191 ◽  
Author(s):  
Teng Li ◽  
Wenbin Dou
Keyword(s):  
Insertion Loss ◽  
Rectangular Waveguide ◽  
Return Loss ◽  
Impedance Matching ◽  
Experimental Results ◽  
Center Frequency ◽  
Substrate Integrated Waveguide ◽  
Rectangular Aperture ◽  
Section Structure ◽  
Better Than

In this paper, a novel wideband right-angle transition between thin substrate integrated waveguide (SIW) and rectangular waveguide (RWG) based on multi-section structure operating at center frequency 31.5 GHz is presented. A multi-section SIW with a rectangular aperture etched on the broad wall and two stepped ridges embedded in the RWG flange are introduced to obtain a wide impedance matching. The simulations show that the bandwidth with return loss better than 20 dB is about 17 GHz. In order to verify our designs, two back-to-back transitions with different lengths are fabricated and measured. The experimental results agree well with simulations. The proposed component shows an insertion loss less than 0.44 dB and a return loss better than 14.5 dB over 12.15 GH, which corresponds to 38.57% bandwidth.

Broadband Transition between Rectangular Waveguide and Substrate Integrated Waveguide Based on Double Rhombus Antenna Probe

2014 ◽  
Vol 668-669 ◽  
pp. 799-802
Author(s):  
Hai Yan Jin ◽  
Teng Yue
Keyword(s):  
Insertion Loss ◽  
Rectangular Waveguide ◽  
Return Loss ◽  
Substrate Integrated Waveguide ◽  
Metal Waveguide ◽  
Low Insertion Loss ◽  
Better Than ◽  
Good Agreement

The paper presents a design of rectangular waveguide-SIW transition, which provides a broadband and low insertion loss performance. The broadband transition is realized by using double-rhombus antenna probe inserted into rectangular metal waveguide. The transition is simulated and measured at 9-20GHz. The measured results show that a good agreement with simulation and an insertion loss less than 2.8 dB and a return loss better than 10 dB are obtained at 10–18.5 GHz for a back-to-back structure.

A Novel Wideband transition from Substrate Integrated Waveguide to Rectangular Waveguide

2020 ◽  
Vol 10 ◽  
Author(s):  
Keyur Mahant ◽  
Hiren Mewada ◽  
Amit Patel ◽  
Alpesh Vala ◽  
Jitendra Chaudhari
Keyword(s):  
Rectangular Waveguide ◽  
Printed Circuit Board ◽  
Low Cost ◽  
Single Layer ◽  
Circuit Board ◽  
Substrate Integrated Waveguide ◽  
Ka Band ◽  
Better Than ◽  
Millimeter Wave Circuits ◽  
Wideband Transition

Aim: In this article, wideband substrate integrated waveguide (SIW) and rectangular waveguide (RWG) transition operating in Ka-band is proposed Objective: In this article, wideband substrate integrated waveguide (SIW) and rectangular waveguide (RWG) transition operating in Ka-band is proposed. Method: Coupling patch etched on the SIW cavity to couple the electromagnetic energy from SIW to RWG. Moreover, metasurface is introduced into the radiating patch to enhance bandwidth. To verify the functionality of the proposed structure back to back transition is designed and fabricated on a single layer substrate using standard printed circuit board (PCB) fabrication technology. Results: Measured results matches with the simulation results, measured insertion loss is less than 1.2 dB and return loss is better than 3 dB for the frequency range of 28.8 to 36.3 GHz. By fabricating transition with 35 SRRs bandwidth of the proposed transition can be improved. Conclusion: The proposed transition has advantages like compact in size, easy to fabricate, low cost and wide bandwidth. Proposed structure is a good candidate for millimeter wave circuits and systems.

scholarly journals A Simplified Design Inline Microstrip-to-Waveguide Transition

Electronics ◽  
2018 ◽  
Vol 7 (10) ◽  
pp. 215 ◽  
Author(s):  
José Pérez-Escudero ◽  
Alicia Torres-García ◽  
Ramón Gonzalo ◽  
Iñigo Ederra
Keyword(s):  
Insertion Loss ◽  
Rectangular Waveguide ◽  
Return Loss ◽  
Intermediate Step ◽  
Analytical Design ◽  
Waveguide Transition ◽  
W Band

A simplified design of an inline transition between microstrip and rectangular waveguide is presented in this paper. The transition makes use of a dielectric filled rectangular waveguide (DFRW) as an intermediate step, which simplifies manufacturing and allows for an analytical design. The behavior of the transition has been experimentally validated in the W-band by means of a back-to-back configuration. Good performance has been achieved: a return loss greaterthan 10 dB and mean insertion loss lower than 1 dB.

Millimeter Wave Characterization of Wire Bond Transitions for W-Band Electromagnetic Sensor

2015 ◽  
Vol 738-739 ◽  
pp. 103-106
Author(s):  
Yong Fang ◽  
Bao Qing Zeng ◽  
Wen Tao Zhang ◽  
Pu Wang
Keyword(s):  
Equivalent Circuit ◽  
Millimeter Wave ◽  
Equivalent Circuit Model ◽  
Single Wire ◽  
Full Wave ◽  
Wire Bond ◽  
W Band ◽  
Electromagnetic Sensor ◽  
Simulation Results ◽  
Lumped Equivalent Circuit

This paper presents millimeter wave characterization and models of various wire bond transitions between chip’s ground-signal-ground pad (GSG) and microstrip (MS), include single-wire-nomatch MS-GSG transition, double-wire-nomatch MS-GSG, single-wire-match MS-GSG transition, and double-wire-match MS-GSG transition. It also presents the 3D full-wave electromagnetic simulation. Analysis results show that the double-wire-match MS-GSG transition’s characteristic is better than other three transitions in the whole W band. The accurate extracted parameter values are used for the lumped equivalent circuit model, whose simulation results are good with the full wave simulation results. The error between lumped equivalent circuit and full-wave models is of the order of ±0.2dB for S11 and S21 in the frequency range 75 - 105GHz. The proposed lumped equivalent circuit is suitable to be implemented in commercial microwave CAD tools for the electromagnetic sensor designing.

Polymer-based micromachined rectangular coaxial filters for millimeter-wave applications

2011 ◽  
Vol 3 (2) ◽  
pp. 115-120 ◽  
Author(s):  
Aline Jaimes-Vera ◽  
Ignacio Llamas-Garro ◽  
Maolong Ke ◽  
Yi Wang ◽  
Michael J. Lancaster ◽  
...  
Keyword(s):  
Millimeter Wave ◽  
Millimeter Waves ◽  
Return Loss ◽  
Low Cost ◽  
Coplanar Waveguide ◽  
Coaxial Line ◽  
Center Conductor ◽  
Low Cost Manufacturing ◽  
Insertion Losses ◽  
Better Than

In this paper, micromachined devices for millimeter-wave applications at U- and V-bands are presented. These structures are designed using a rectangular coaxial line built of gold-coated SU-8 photoresist layers, where the coaxial center conductor is suspended in air by stubs. The designs include a stepped coplanar waveguide (CPW)-to-coaxial transition at 63 GHz, with an insertion loss of 0.39 dB at 67.75 GHz and a return loss better than −10 dB across the band of operation between 54.7 and 70.3 GHz. Two filters have been designed; one centered at 42 GHz with a 10% bandwidth, and another at 63 GHz with a 5% bandwidth. Measured insertion losses of 0.77 and 2.59 dB were obtained for these filters, respectively. Measured return loss lower than 13.8 dB over the passband was achieved for both designs. The structures presented in this paper involve a low-cost manufacturing process suitable to produce integrated subsystems at millimeter waves.

scholarly journals Analysis and design of rectangular waveguide to substrate integrated waveguide transition with voltage and current probe in W-band

2015 ◽  
Vol 12 (19) ◽  
pp. 20150682-20150682
Author(s):  
Yong Fang ◽  
Baoqing Zeng ◽  
Zhicai Zhang ◽  
Hai Zhang ◽  
Lei Yu ◽  
...  
Keyword(s):  
Rectangular Waveguide ◽  
Substrate Integrated Waveguide ◽  
Analysis And Design ◽  
Waveguide Transition ◽  
W Band

scholarly journals W-Band Hybrid Unequal Feeding Network of Waveguide and Substrate Integrated Waveguide for High Efficiency and Low Sidelobe Level Slot Array Antenna Application

2017 ◽  
Vol 2017 ◽  
pp. 1-8 ◽  
Author(s):  
Jun Wang ◽  
Yu Jian Cheng
Keyword(s):  
Antenna Arrays ◽  
High Efficiency ◽  
Phase Distribution ◽  
Substrate Integrated Waveguide ◽  
Low Loss ◽  
Sidelobe Level ◽  
Vertical Transition ◽  
W Band ◽  
Low Sidelobe ◽  
Hybrid Waveguide

A W-band hybrid unequal feeding network of waveguide and substrate integrated waveguide (SIW) is presented in this paper. It comprises a two-way hybrid waveguide-SIW E-plane divider and an unequal SIW dividing network. Firstly, the two-way hybrid divider is developed to realize the waveguide-to-SIW vertical transition and power division at the same time. Besides, it has a wider bandwidth and more compact configuration compared with those of conventional structures including a transition and a cascading divider. Secondly, an SIW 1-to-16-way unequal dividing network is developed with the phase self-compensation ability. This W-band dividing network is able to generate the desired amplitude and phase distribution. Finally, two back-to-back SIW 16 × 16 antenna arrays are grouped and fed by the proposed feeding network. The low sidelobe levels (SLLs) can be achieved at E- and H-plane of the antenna. The total aperture size of the antenna is 15% less than that of a conventional antenna with a separated divider and a transition. With such a multifunctional feeding network, the antenna is able to achieve low loss and high efficiency as well.

scholarly journals Logarithmic Slots Antennas Using Substrate Integrated Waveguide

2015 ◽  
Vol 2015 ◽  
pp. 1-11 ◽  
Author(s):  
Jahnavi Kachhia ◽  
Amit Patel ◽  
Alpesh Vala ◽  
Romil Patel ◽  
Keyur Mahant
Keyword(s):  
Dielectric Constant ◽  
High Frequency ◽  
Return Loss ◽  
High Gain ◽  
Substrate Integrated Waveguide ◽  
High Frequency Structure Simulator ◽  
High Gain Antenna ◽  
X Band ◽  
New Generation ◽  
Better Than

This paper represents new generation of slotted antennas for satellite application where the loss can be compensated in terms of power or gain of antenna. First option is very crucial because it totally depends on size of satellite so we have proposed the high gain antenna creating number of rectangular, trapezoidal, and I shape slots in logarithm size in Substrate Integrated Waveguide (SIW) structure. The structure consists of an array of various shape slots antenna designed to operate in C and X band applications. The basic structures have been designed over a RT duroid substrate with dielectric constant of 2.2 and with a thickness of 0.508 mm. Multiple slots array and shape of slot effects have been studied and analyzed using HFSS (High Frequency Structure Simulator). The designs have been supported with its return loss, gain plot, VSWR, and radiation pattern characteristics to validate multiband operation. All the proposed antennas give gain more than 9 dB and return loss better than −10 dB. However, the proposed structures have been very sensitive to their physical dimensions.

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