Tunable SIW Structures: Antennas, VCOs, and Filters

Entesari, Kamran; Saghati, Alireza Pourghorban; Sekar, Vikram; Armendariz, M.G.

doi:10.1109/mmm.2015.2408273

Cited by 56 publications

(40 citation statements)

References 51 publications

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“…Nevertheless, the need to bias active devices and the electrical connection of the SIW metal layers to ground present a challenge to the direct integration of active devices in SIW technology. For many applications, several solutions have been reported [1] - [2]. For the explained designs in [1], it is proposed the use of single isolated pads allocated on the top of the SIW metal layer to the direct connection of active devices on the SIW structure.…”

Section: Introductionmentioning

confidence: 99%

“…For many applications, several solutions have been reported [1] - [2]. For the explained designs in [1], it is proposed the use of single isolated pads allocated on the top of the SIW metal layer to the direct connection of active devices on the SIW structure. However, this procedure requires a refined tuning to avoid the modification of SIW propagation properties.…”

Section: Introductionmentioning

confidence: 99%

“…It presents periodic isolated pads over its metallic plates, preserving the propagation properties and dimensions of its counterpart SIW and allowing travelling wave compatible topologies. So, the proposed SIW makes possible the direct integration of biased active and passive devices, following biasing topologies and integration similar to [1]. This paper will deal with some aspects of these structures such as operating principle, design approach (sections II and III), and experimental characterization comparing them with conventional SIW propagation related measurements.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Substrate Integrated Waveguides Structures Using Frequency Selective Surfaces Operating in Stop-Band (SBFSS-SIW)

Esparza

Alcon

Herrán

et al. 2016

IEEE Microw. Wireless Compon. Lett.

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A novel Substrate Integrated Waveguide (SIW) is proposed using Frequency Selective Surfaces (FSS) operating in StopBand (SBFSS-SIW) as metal conductor plates. These structures preserve the propagation properties and the dimensions of the conventional SIW, and have periodic isolated pads that could allow the direct integration of biased active and passive devices on the SIW surface. A set of SBFSS-SIW for X-band have been designed, simulated and experimentally measured to demonstrate that SBFSS-SIWs can behave similar to conventional SIW structures when FSS cells are optimized to work far from its resonance frequency. Index TermsSubstrate integrated waveguides using frequency selective surfaces operating in Stop-Band (SBFSS-SIW), substrate integrated waveguide (SIW), frequency selective surfaces (FSS), periodic structure.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Substrate Integrated Waveguides Structures Using Frequency Selective Surfaces Operating in Stop-Band (SBFSS-SIW)

Esparza

Alcon

Herrán

et al. 2016

IEEE Microw. Wireless Compon. Lett.

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“…As the demand on communications systems that use multiple operating frequencies increases, design of frequency-tunable RF/microwave filters and multi-band filters has been of a great interest in the field of microwave engineering [1,2,3,4,5,6,7,8,9,10,11,12,13,14]. Particularly, study on frequency-tunable filters has been mainly motivated by increased necessity of frequency agility in next-generation communications systems and electronic-warfare systems.…”

Section: Introductionmentioning

confidence: 99%

“…Tunable SIW cavity resonator filters have shown large frequency tuning ranges and high-Q performances [7,8,9,10,11,12,13]. Fig.…”

Section: Introductionmentioning

confidence: 99%

Low-cost high-performance frequency-tunable substrate-integrated waveguide filter structure and fabrication method

Nam¹,

Koh²,

Lee³

et al. 2016

IEICE Electron. Express

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This paper presents a new frequency-tunable substrate-integrated waveguide (SIW) filter structure and its fabrication method. The center frequency of the filter is adjusted by moving the membrane structure in each resonator, and the presented fabrication method mainly focuses on how to minimize the number of fabrication steps for constructing the flexible membrane. Due to the simplified process, the filter has advantages of low cost and low risk fabrication. The comparison between a conventional fabrication procedure and the new proposed method is described. For verifying the presented filter structure and fabrication method, two frequency-tunable SIW bandpass filters of the presented structure have been implemented using the presented fabrication method. It is shown that the measured response agrees well with the simulated one. The minimum insertion loss is 0.85 dB, demonstrating that high quality factor can be achieved. Keywords: substrate integrated waveguide (SIW), filter, high Q, copper membrane Classification: Microwave and millimeter-wave devices, circuits, and modules References[1] R. Gomez-Garcia and X. Gong: IEEE Microw. Mag. 15 (2014) 28.

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Empty substrate integrated waveguide technology for E plane high‐frequency and high‐performance circuits

et al. 2017

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Substrate integrated circuits (SIC) have attracted much attention in the last years because of their great potential of low cost, easy manufacturing, integration in a circuit board, and higher‐quality factor than planar circuits. A first suite of SIC where the waves propagate through dielectric have been first developed, based on the well‐known substrate integrated waveguide (SIW) and related technological implementations. One step further has been made with a new suite of empty substrate integrated waveguides, where the waves propagate through air, thus reducing the associated losses. This is the case of the empty substrate integrated waveguide (ESIW) or the air‐filled substrate integrated waveguide (air‐filled SIW). However, all these SIC are H plane structures, so classical H plane solutions in rectangular waveguides have already been mapped to most of these new SIC. In this paper a novel E plane empty substrate integrated waveguide (ESIW‐E) is presented. This structure allows to easily map classical E plane solutions in rectangular waveguide to this new substrate integrated solution. It is similar to the ESIW, although more layers are needed to build the structure. A wideband transition (covering the frequency range between 33 GHz and 50 GHz) from microstrip to ESIW‐E is designed and manufactured. Measurements are successfully compared with simulation, proving the validity of this new SIC. A broadband high‐frequency phase shifter (for operation from 35 GHz to 47 GHz) is successfully implemented in ESIW‐E, thus proving the good performance of this new SIC in a practical application.

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Tunable SIW Structures: Antennas, VCOs, and Filters

Cited by 56 publications

References 51 publications

Substrate Integrated Waveguides Structures Using Frequency Selective Surfaces Operating in Stop-Band (SBFSS-SIW)

Substrate Integrated Waveguides Structures Using Frequency Selective Surfaces Operating in Stop-Band (SBFSS-SIW)

Low-cost high-performance frequency-tunable substrate-integrated waveguide filter structure and fabrication method

Empty substrate integrated waveguide technology for E plane high‐frequency and high‐performance circuits

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