An Electronically Controlled Leaky-Wave Antenna Based on Corrugated SIW Structure With Fixed-Frequency Beam Scanning

Chen, Ke; Zhang, Yun Hua; He, Siyuan; Chen, Hai Tao; Zhu, Guo Qiang

doi:10.1109/lawp.2019.2896354

Cited by 41 publications

(36 citation statements)

References 16 publications

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“…It's based on unit-cells providing a continuous electronically reconfigurable phase range of 360 • by using varactor diodes as tunable elements. Fixed-frequency beam-steering can be achieved by using varactor diodes to realize an electronically controlled antenna [12]. Pin diodes are also used as binary switches, to change electronically the effective width of the SIW antenna.…”

Section: Introductionmentioning

confidence: 99%

Reconfigurable SIW Antenna for Fixed Frequency Beam Scanning and 5G Applications

et al. 2020

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A novel reconfigurable slotted leaky-wave antenna (LWA) based on a substrate integrated waveguide (SIW) with a fixed-frequency beam-steering capability is presented in this paper. For improved compactness, the structure is based on a SIW technology with rectangular slots fed by associated coupling with plated-through holes (PTH).This represents a new feeding method for etched slots in SIW antennas. Each via is loaded with a pin diode on both sides frontend of the waveguide. The pin diodes are tunable by adjusting the DC bias voltage, which results in beam scanning at a fixed frequency of around 27 GHz. Thus an electronically controlled steerable SIW antenna has been designed and experimentally verified that the radiation angle varies from −33 • to +33 • .

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Section: Introductionmentioning

confidence: 99%

Reconfigurable SIW Antenna for Fixed Frequency Beam Scanning and 5G Applications

et al. 2020

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“…In comparison with an SIW structure, the CSIW maintains the DC isolation between the top and bottom conductors by use of the open-circuit quarter wavelength stubs instead of metallic vias. CSIW structure enables tunable leaky-wave antennas, and a beam scanning antenna using an electronically controlled LWA based on a CSIW was recently proposed [20]. In order to reduce the length of the quarter-wavelength open-stubs, a half-mode CSIW structure utilizing bent (or fan-shaped) quarter-wavelength open-stubs was recently proposed [21], however, the design suffers from drawbacks such as small scanning angle range, complex structure and fabrication, as well as low gain.…”

Section: Introductionmentioning

confidence: 99%

A Simple High-Gain Millimeter-Wave Leaky-Wave Slot Antenna Based on a Bent Corrugated SIW

et al. 2020

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We propose a bent corrugated substrate integrated waveguide (BCSIW) structure that can be used to design a high gain leaky wave antenna (LWA). The design removes the need for a metallic via fabrication process needed for standard substrate integrated waveguides (SIW) and displays superior performance to previously reported structures. We use simulations to compare the performance of the proposed BCSIW LWA to equivalent standard SIW and corrugated SIW (CSIW) structures, as well as experimentally characterize a fabricated BCSIW LWA. Simulation results show that the BCSIW structure can help improve the impedance bandwidth of a slotted LWA by about 14.7% while still maintaining high gain (about 13.2-17.4 dBi) as compared to an LWA based on a CSIW structure. Measurement results indicate that the proposed BCSIW LWA has a wide impedance bandwidth (32.6%) and a high peak gain (12-16.2 dBi) throughout a large frequency range from 22 to 29.2 GHz with a large beam angle range from −69 • to −10 •. INDEX TERMS Leaky-wave antenna (LWA), substrate integrated waveguide (SIW), bent corrugated, low-cost.

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“…For certain advanced devices or antennas, special properties can be obtained by using a liquid crystal (LC) substrate or loading varactor diodes on the microstrip stubs. For example, LCbased microwave filters' bandwidth or center frequency can be tuned by changing the LC dielectric constant through a controlling bias [34], and a frequency-fixed beam-scanning LWA [12] was realized by using electronically controllable varactor diodes on corrugated microstrip lines. These examples are all based on the principle of changing the electrical length of the microstrip stubs, which is also equivalent to minor changes in the physical length or width of the microstrip stubs in a simulation.…”

Section: The Effect Of Microstrip Stubs Dimensions On the Lwa Perfmentioning

confidence: 99%

“…Thus, CSIW structures operated at frequencies above the TE 10 mode cutoff are promising candidates for LWA design. A high-gain millimeter-wave leaky-wave antenna based on a bent corrugated SIW (BCSIW) with a broad frequency range from 22 to 29.2 GHz and a large beam angle range from −69 • to −10 • was recently demonstrated [11], and two electronically controlled LWAs that realized beam scanning at fixed frequencies by using loaded varactor diodes [12] and PIN diodes [13] on the CSIW structure have been reported. A circularly polarized (CP) LWA based on a CSIW, which utilized two compound slot pair arrays etched on the top of the antenna to achieve broadside radiation and good axial ration (AR) in the main beam direction, has also been proposed [14].…”

Section: Introductionmentioning

confidence: 99%

A Broadband High-Gain Circularly Polarized Wide Beam Scanning Leaky-Wave Antenna

et al. 2020

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A new type of broadband circularly polarized leaky-wave antenna (LWA) with high-gain based on a corrugated substrate integrated waveguide (CSIW) structure is proposed and investigated. The CSIW structure that employs open-circuit stubs to replace metallic vias has the advantages of low-cost and easy fabrication as compared to conventional substrate integrated waveguides. Each unit-cell of the proposed LWA consists of two quarter-wavelength microstrip lines and a half-mode CSIW cell with three opencircuit stubs. Two M-shaped slots etched on the half-mode CSIW cell enables the generation of circularly polarized (CP) radiation. The full LWA, which consists of thirteen matched unit-cells cascaded along the direction of propagation enables continuous backward to forward beam scanning. The properties of the CSIW structure, including impedance matching and phase constant, are analyzed by Bloch impedance and dispersion simulations and the influence of the dimensions of the open-circuit stubs on the CP LWA performance is also investigated. A protype of the proposed LWA is fabricated and characterized. The measured results indicate that the proposed CSIW LWA has a high peak gain (9.3-12.5 dBi) throughout a large beam-scanning angle range from −28 • to +25 • , and the impedance bandwidth and 3-dB axial ratio (AR) bandwidth are over 40% covering the full Ka-band. INDEX TERMS Leaky-wave antenna (LWA), corrugated substrate integrated waveguide (CSIW), circular polarization (CP), beam scanning, Ka-band, broadband.

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An Electronically Controlled Leaky-Wave Antenna Based on Corrugated SIW Structure With Fixed-Frequency Beam Scanning

Cited by 41 publications

References 16 publications

Reconfigurable SIW Antenna for Fixed Frequency Beam Scanning and 5G Applications

Reconfigurable SIW Antenna for Fixed Frequency Beam Scanning and 5G Applications

A Simple High-Gain Millimeter-Wave Leaky-Wave Slot Antenna Based on a Bent Corrugated SIW

A Broadband High-Gain Circularly Polarized Wide Beam Scanning Leaky-Wave Antenna

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