Design and Performance of a High- $Q$ Narrow Bandwidth Bandpass Filter in Empty Substrate Integrated Coaxial Line at $K_{u}$ -Band

Borja, Alejandro L.; Belenguer, Ángel; Esteban, H.; Boria, Vicente E.

doi:10.1109/lmwc.2017.2750118

Cited by 31 publications

(30 citation statements)

References 9 publications

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“…This filter exhibits the same topology that was presented in Ref. 4 Figure 5 shows the measured response of the ESICL filter in the margin from 2 GHz to 18 GHz by applying the extended calibration procedure; this plot reveals a measurement of high quality and accuracy in a wide frequency bandwidth (from bands S to Ku), what reasserts the validity of the measurement procedure. A zoomed version of the plot can be seen at Figure 6 in the narrow designed margin from 12 GHz to 14 GHz; it leads to a measured insertion loss of 0.98 dB, which is very low, and provides a measured quality factor 10 of 1509, which is very high and close to the simulated one.…”

Section: Resultssupporting

confidence: 56%

“…Recently, some devices have been developed using ESICL: transition to grounded coplanar (GCPW) lines, a wideband bandpass filter and a high‐Q narrow bandwidth bandpass filter . At the same time, specific analysis techniques (BI‐RME, FEM) for ESICL have also been carried out, which allow the full‐wave analysis and design of ESICL devices …”

Section: Introductionmentioning

confidence: 99%

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Wide‐bandwidth thru‐reflect‐line calibration for empty substrate‐integrated coaxial line with grounded coplanar transitions

Fernández

Ballesteros

Martínez

et al. 2018

Micro & Optical Tech Letters

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Empty coaxial structures built with printed circuit boards have low radiation, low losses, high quality factor and non‐dispersive features. The full integration of empty substrate‐integrated coaxial line (ESICL) in a planar substrate is nowadays a fact thanks to a grounded coplanar transition. To properly characterize and measure this new ESICL family of devices, a low cost and easy to manufacture thru‐reflect‐line calibration kit is proposed to de‐embed not only the connectors and feeding lines, but also the ESICL transitions.

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Section: Resultssupporting

confidence: 56%

Section: Introductionmentioning

confidence: 99%

Wide‐bandwidth thru‐reflect‐line calibration for empty substrate‐integrated coaxial line with grounded coplanar transitions

Fernández

Ballesteros

Martínez

et al. 2018

Micro & Optical Tech Letters

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“…Recently, SICL has obtained more attention in the microwave technical field. At present, the SICL can be used to design the antenna [9][10][11][12][13][14], balun [15], and transition between SICL [16,17] and filter [18][19][20].…”

Section: Introductionmentioning

confidence: 99%

“…In [18], a compact filter based on SICL stubs was designed using an advanced multilayer printed circuit board (PCB) substrate, and this technology is convenient to implement high-density interconnect (HDI) devices, which are dedicated to mass market and require to be compact and low cost. Borja et al [19] presented the design and…”

Section: Introductionmentioning

confidence: 99%

A Dual-Polarized Printed Antenna Based on a Tapered Slot SICL Balun for Airborne Radar Application

Liu

Wang

Zhang

et al. 2020

International Journal of Antennas and Propagation

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The substrate-integrated coaxial line (SICL) is a potential transmission line due to its good characteristics of high efficiency, nondispersive, and single operational mode. A tapered slot SICL balun is proposed, which can realize the impedance transformation from the microstrip line to the coplanar strip line (CPS). At the same time, the proposed balun can transform the quasi-TEM mode of the microstrip line to the TEM mode of CPS. A printed dipole radiator is designed and is fed by the proposed SICL balun to achieve the impedance matching. The dual-polarized radiation mode is realized by employing two orthogonal printed dipoles. For each polarization radiator, the CPS is bended to avoided the occlusion of two polarization ports and realize the direct assembling of two orthogonal printed circuits. What is more, the assembling method is advantageous to improve the port isolation degree and decrease the cross polarization level. To improve the ratio of front to back (F/B) of the radiation pattern, a cylindrical metal cavity is adopted. According to the results of simulation and experiments, the VSWR of each port is lower than 2, the isolation degree between two polarization ports is higher than 20 dB, and the cross polarization level at the boresight is lower than −20 dB at the operational frequency. The patterns of two ports are almost symmetric, and high radiation efficiency is obtained. The experimental results of the principle prototype verify the design schemes of the balun and the dual-polarized antenna. The proposed dual-polarized antenna fed by the tapered slot SICL balun is suitable for the airborne radar application.

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“…The ESICL is a two-conductor transmission line, whose cross section is a rectangular coaxial built with the superposition of five layers of printed circuit board, as shown in Figure 1. This novel transmission line has been recently proposed, and up to date it has only been applied to the implementation of wide band [25] and narrow band [26] microwave filters with a non-dispersive TEM propagating mode. There is, consequently, many possible applications that remain to be explored for this novel transmission line.…”

Section: Introductionmentioning

confidence: 99%

Stop Band Continuous Profile Filter in Empty Substrate Integrated Coaxial Line

Gómez¹,

Esteban²,

Belenguer³

et al. 2018

Preprint

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Substrate integrated waveguides reduce the losses and increase the quality factor of resonators in communication filters when compared with traditional planar technologies, while maintaining their low cost and low profile characteristics. Empty substrate integrated waveguides go one step further, removing the dielectric of the substrate. One of these transmission lines is the empty substrate integrated coaxial line (ESICL), which adds the advantage of being a two conductor structure. Thus, it propagates a TEM mode, which reduces the dispersion and the bandwith limitation of other one conductor empty substrate integrated waveguides. Continuous profile filters, at the cost of being long structures, are very easy to manufacture and design (usually no optimization is needed), and they are highly insensitive to manufacturing tolerances. In this work a simple continuous profile filter, with a stop band response, is designed for the first time in the novel ESICL technology. The influence of the design parameters on the insertion losses and fractional bandwidth is discussed. A prototype has been successfully manufactured and measured. A sensitivity analysis shows the high tolerance of the proposed stop band filter to manufacturing errors.

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Design and Performance of a High- $Q$ Narrow Bandwidth Bandpass Filter in Empty Substrate Integrated Coaxial Line at $K_{u}$ -Band

Cited by 31 publications

References 9 publications

Wide‐bandwidth thru‐reflect‐line calibration for empty substrate‐integrated coaxial line with grounded coplanar transitions

Wide‐bandwidth thru‐reflect‐line calibration for empty substrate‐integrated coaxial line with grounded coplanar transitions

A Dual-Polarized Printed Antenna Based on a Tapered Slot SICL Balun for Airborne Radar Application

Stop Band Continuous Profile Filter in Empty Substrate Integrated Coaxial Line

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