Proceedings Article•
Efficient probe excitation of dielectric image line using substrate integrated waveguide based matching network
13 May 2015-pp 1-4
TL;DR: In this article, a transition from co-axial probe-to-substrate integrated waveguide (SIW) and from SIW-todielectric image line (DIL) is proposed in Ku-band (12-18 GHz).
Abstract: In this paper, a novel transition from co-axial probe-to-substrate integrated waveguide (SIW) and from SIW-to-dielectric image line (DIL) is proposed in Ku-band (12–18 GHz). The proposed transition is designed on a single substrate and thus eliminates complex multi-layer fabrication process for implementation of dielectric image line two port network. The proposed design is simulated on Ansoft HFSS and exhibits wide bandwidth performance. For probe-to-SIW back-to-back transition, the relative bandwidth (−20dB) is 38.5% and for back-to-back transition from probe-to-SIW and from SIW-to-DIL, the relative bandwidth (−15dB) is 24.5%. The insertion loss is better than 3.2 dB throughout the operating bandwidth. Detailed studies on dimensions of the matching network is also discussed. The results are also verified by using CST Microwave Studio.
Citations
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TL;DR: In this paper, a metamaterial-loaded substrate integrated wave-guide (SIW) horn antenna and its array application are investigated in this communication, where the mushroom-type metammaterial is placed in front of SIW horn aperture, and much improvement in impedance matching is achieved on a 1/20~\lambda _{0}$ -thickness substrate.
Abstract: A metamaterial-loaded substrate integrated wave-guide (SIW) horn antenna and its array application are researched in this communication. The mushroom-type metamaterial is placed in front of SIW horn aperture, and much improvement in impedance matching is achieved on a 1/ $20~\lambda _{0}$ -thickness substrate. Due to the backward wave generated by the metamaterial, backward endfire radiation pattern is observed for the proposed antenna. Experimental results indicate that a fractional impedance bandwidth of 10.6% is obtained for a fabricated prototype. Furthermore, a shunt four-element array and a monopulse four-element array are designed based on the novel SIW horn element to further enhance the radiation performance. Results show that performances of wide operating bandwidth, low profile, and backward endfire radiation pattern are maintained for the designed two arrays.
31 citations
Cites methods from "Efficient probe excitation of diele..."
...Finally, a modified probe-to-SIW transition is employed to feed the SIW horn antenna [23]....
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TL;DR: In this paper, a linearly tapered dielectric waveguide antenna with planar substrate integrated waveguide (SIW) feeding is presented for Ku-band (12-18 GHz) application.
Abstract: In this letter, a linearly tapered dielectric waveguide antenna with planar substrate integrated waveguide (SIW) feeding is presented for Ku-band (12–18 GHz) application. To make the feeding network planar, the SIW and central part of antenna are fabricated on a single substrate. Two metal strips are mounted on each top and bottom side of the central part of the antenna element for matching purpose. The antenna is designed and optimized using Ansoft HFSS. The optimized prototype is fabricated and measured. An endfire radiation pattern is achieved with low sidelobe (around 12 dB) and cross-polarization (around 20 dB) level in both E- and H-planes. The measured impedance bandwidth and maximum gain are 33.3% (11.5–16.1 GHz) and 12.4 dBi, respectively.
10 citations
Cites background from "Efficient probe excitation of diele..."
...To compensate this inductance, a circular metal part at the top wall of the SIW concentric to the probe is etched out to produce capacitance between the probe and top metal wall of the SIW, which improves the impedance matching [15]....
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TL;DR: In this paper, a broadband planar substrate truncated tapered microstrip line-to-dielectric image line transition on a single substrate is proposed, which helps to minimize the losses due to the surface wave generation on thin microstrip lines.
Abstract: In this letter, a broadband planar substrate truncated tapered microstrip line-to-dielectric image line transition on a single substrate is proposed The design uses substrate truncated microstrip line which helps to minimize the losses due to the surface wave generation on thick microstrip line Generalized empirical equations are proposed for the transition design and validated for different dielectric constants in millimeter-wave frequency band Full-wave simulations are carried out using high frequency structural simulator A back-to-back transition prototype of Ku-band is fabricated and measured The measured return loss for 80-mm-long structure is better than 10 dB and the insertion loss is better than 25 dB in entire Ku-band (40% impedance bandwidth)
6 citations
Cites methods from "Efficient probe excitation of diele..."
...In [6], a co-axial probe-fed substrate integrated waveguide (SIW) network is used to excite the DIL in Ku-band and the reported bandwidth (−15 dB) is 24....
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01 Sep 2015
TL;DR: In this article, a directive dielectric image line (DIL) tapered planar antenna is presented in Ku-band, which is fed by substrate integrated waveguide (SIW).
Abstract: In this paper, a directive dielectric image line (DIL) tapered planar antenna is presented in Ku-band. The antenna is fed by substrate integrated waveguide (SIW) which is designed with the dielectric image line taper antenna on a single substrate to make the design fully planar. Simulations are carried out in Ansoft HFSS. The proposed antenna provides 15 dBi gain over wide bandwidth (33.33%), and with almost frequency-independent main lobe tilted at 72° from broadside.
4 citations
01 Dec 2015
TL;DR: In this article, the effect of probe dimensions on the excitation of substrate integrated waveguide (SIW) in thick substrate in X (8-12 GHz) and Ku (12-18 GHz) frequency band is presented.
Abstract: The effect of probe dimensions on the excitation of substrate integrated waveguide (SIW) in thick substrate in X (8– 12 GHz) and Ku (12–18 GHz)-frequency band is presented. The SIW is excited by a standard SMA connector and with K-connector and their performances are compared. The proposed transition is simulated using Ansof HFSS. The simulated bandwidth (S11< −20dB) for standard SMA-to-SIW back-to-back transition is 38.65% and for the K-connector-to-SIW back-to-back transition it is improved up to 61.81%.
3 citations
Cites background from "Efficient probe excitation of diele..."
...A wideband transition from coaxial-probe-to-SIW on thick substrate at Ku-band is presented in [6]....
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References
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TL;DR: In this paper, a planar platform is developed in which the microstrip line and rectangular waveguide are fully integrated on the same substrate, and they are interconnected via a simple taper.
Abstract: Usually transitions from microstrip line to rectangular waveguide are made with three-dimensional complex mounting structures. In this paper, a new planar platform is developed in which the microstrip line and rectangular waveguide are fully integrated on the same substrate, and they are interconnected via a simple taper. Our experiments at 28 GHz show that an effective bandwidth of 12% at 20 dB return loss is obtained with an in-band insertion loss better than 0.3 dB. The new transition allows a complete integration of waveguide components on substrate with MICs and MMICs.
1,631 citations
"Efficient probe excitation of diele..." refers background in this paper
...Several transitions from microstrip and coplanar line-to-SIW have been proposed [8], [9]....
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TL;DR: In this article, the authors provide an overview of the recent advances in the modelling, design and technological implementation of SIW structures and components, as well as their application in the development of circuits and components operating in the microwave and millimetre wave region.
Abstract: Substrate-integrated waveguide (SIW) technology represents an emerging and very promising candidate for the development of circuits and components operating in the microwave and millimetre-wave region. SIW structures are generally fabricated by using two rows of conducting cylinders or slots embedded in a dielectric substrate that connects two parallel metal plates, and permit the implementation of classical rectangular waveguide components in planar form, along with printed circuitry, active devices and antennas. This study aims to provide an overview of the recent advances in the modelling, design and technological implementation of SIW structures and components.
1,129 citations
"Efficient probe excitation of diele..." refers background or methods in this paper
...The cut-off frequency of the SIW section is chosen such that it will work in a single mode in the entire Ku-band and the equivalent width of the SIW is calculated accordingly [7]....
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...Substrate Integrated waveguide (SIW) is an attractive technology which incorporates waveguide circuits in planar form by incorporating rows of metallic vias to implement the side wall of the waveguide [7]....
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Book•
06 Jan 1984
TL;DR: In this paper, the advantages and disadvantages of millimeter wave systems and components as compared to microwaves and optical frequencies; the characteristics of different types of generation devices; and the attenuation characteristics of gases, clouds, rain snow, and other environmental conditions.
Abstract: Covering a broad range of topics-from generation, propagation and transmission, to components, circuits, antennas, and millimeter wave applications and systems-this work deals exclusively with millimeter wave technology and its most modern applications. Divided into ten chapters, its topics include the advantages and disadvantages of millimeters wave systems and components as compared to microwaves and optical frequencies; the characteristics of different types of generation devices; and the attenuation characteristics of gases, clouds, rain snow, and other environmental conditions.
225 citations
"Efficient probe excitation of diele..." refers background in this paper
...Dielectric image line (DIL) is a good candidate for millimeter wave applications which exhibits low loss at these frequencies because most of the power travels through the low loss dielectric material [1]....
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20 May 2001
TL;DR: In this paper, a planar platform is developed in which a coplanar waveguide and a rectangular waveguide are fully integrated on the same substrate, and they are interconnected via a simple transition.
Abstract: Usual transitions between planar circuit and rectangular waveguide make use of 3-D complex mounting structures. Such an integration requires costly high precision mechanical alignment, In this paper, a new planar platform is developed in which a coplanar waveguide (CPW) and a rectangular waveguide are fully integrated on the same substrate, and they are interconnected via a simple transition. They can be built with a standard PCB process. Our experiments at 28 GHz show that an effective bandwidth of 7% at 15 dB return loss can easily be achieved. The CPW-to-waveguide transition allows for a complete integration of waveguide components on substrate with active components such as MMIC.
208 citations
"Efficient probe excitation of diele..." refers background in this paper
...In [9], the relative bandwidth achieved is low....
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...Several transitions from microstrip and coplanar line-to-SIW have been proposed [8], [9]....
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TL;DR: In this article, the transition between a grounded coplanar waveguide and a substrate integrated rectangular waveguide (SIRW) is investigated and a computer-aided-design-oriented analytical model is developed in order to optimize the geometrical dimensions of the transition.
Abstract: The transition between a grounded coplanar waveguide (GCPW) and a substrate integrated rectangular waveguide (SIRW) is investigated in this paper. The proposed scheme makes use of a current probe to transfer power between the two dissimilar transmission lines. A computer-aided-design-oriented analytical model is developed in order to optimize the geometrical dimensions of the transition. By using the GCPW instead of the microstrip line to interface the SIRW, substrate thickness can be increased without incurring a penalty due to transmission loss. Therefore, it is possible to achieve higher Q components. Experiments at 28 GHz show that an effective bandwidth of 10% can easily be obtained. The insertion loss is less than 0.73 dB over the bandwidth of interest.
133 citations