A 45$^\circ$ Linearly Polarized Slot Array Antenna With Substrate Integrated Coaxial Line Technique

Liu, Bing; Zhao, Renrong; Ma, Yu; Guo, Zi-Jun; Wei, Xiangyun; Xing, Wenqiang; Wang, Yuting

doi:10.1109/lawp.2018.2789585

Cited by 27 publications

(11 citation statements)

References 7 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…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%

“…e growing interest in collision avoidance automotive radar systems in Ka-band necessitates the development of dedicated antenna systems with a 45°inclined linear polarization (LP). A 45°inclined and linearly polarized slot array antenna in the Ka-band with SICL technique is presented for collision avoidance automotive radar system application in [12]. Zhu et al [15] proposed an ultrawideband (UWB) Marchand balun by using substrate-integrated coaxial line (SICL) technology, which is suitable for applications in UWB communication systems.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

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

View full text Add to dashboard Cite

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.

show abstract

Section: Introductionmentioning

confidence: 99%

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

View full text Add to dashboard Cite

show abstract

“…A few literature have been reported in the past to design the substrate integrated coaxial line (SICL)‐based slot antennas. A

45 °

linearly polarised slot antenna array [1], a homolaterally etched slot antenna array [2] has been proposed. SICL excited cavity backed patch antenna [3] and a

1 \times 4

cavity backed patch antenna array have been proposed for Q‐band applications [4], which use open cavity structure and degrades its shielded nature.…”

Section: Introductionmentioning

confidence: 99%

Slot antenna excited by novel substrate integrated coaxial line cavity for millimetre wave application

Baghel

Mukherjee

2020

Electron. lett.

View full text Add to dashboard Cite

In this Letter, a novel compact slot antenna has been realised using substrate integrated coaxial line (SICL) cavity. SICL technology helps to achieve cavity size of 0.41λ0×0.48λ0 while maintaining its inherent advantage of self shielded and low loss transmission line at millimetre frequencies. A SICL cavity is designed by shorting the middle conductor at the two edges and keeping the other two edges separated from the sidewall. The eigenmode analysis affirms the presence of a dominant TEM mode at 28 GHz along with the presence of SICL even and odd modes. A half wavelength diagonal slot is etched on the bottom plate of the cavity to disturb the TEM mode surface current at 28 GHz. Measurement results show the SICL cavity backed slot antenna exhibits a gain of 5.6 dBi at 28.6 GHz and high front‐to‐back ratio better than 17 dB. The SICL‐based cavity exhibits millimetre wave resonance with much smaller size, which helps to improve the compactness of the design. The proposed antenna can be used for millimetre wave applications like handheld mobile devices at millimetre‐wave frequencies.

show abstract

“…Achieving a Low side lobe level (SLL) is one of the important challenges in many applications. In Reference 1‐5, amplitude tapering has been used for this purpose in resonant slotted‐waveguide arrays. In Reference 1, based on the Dolph‐Chebyshev distribution, slots have been shaped in such a manner that leads to 17 dB SLL in measurement.…”

Section: Introductionmentioning

confidence: 99%

Unequally spaced resonant slotted‐waveguide antenna array with low side lobe level based on an open‐ended substrate integrated waveguide resonator

Taheri

Majedi

2020

Micro & Optical Tech Letters

View full text Add to dashboard Cite

In this article, an unequally spaced resonant slotted‐waveguide antenna array with low side lobe level (SLL) is presented. In the conventional resonant arrays with longitudinal slots on the waveguide broad wall, slots must be separated one half guided wavelength (λg/2) from each other and be on opposite sides of the center line to have an in‐phase excitation. The open‐ended substrate integrated waveguide (SIW) resonator can support a resonance mode with the infinite wavelength. Hence using this kind of resonator, distances between slots in the resonant array are free parameters and can be optimized to achieve a low SLL. Based on the mentioned resonator, a 10‐element resonant slotted‐waveguide antenna array at 10 GHz with 10° beam‐width is designed and simulated. The distances between slots are determined by using genetic algorithm (GA). This antenna has been fabricated and measured. The measurement results show that the SLL of the presented antenna is 16 dB.

show abstract

A 45$^\circ$ Linearly Polarized Slot Array Antenna With Substrate Integrated Coaxial Line Technique

Cited by 27 publications

References 7 publications

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

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

Slot antenna excited by novel substrate integrated coaxial line cavity for millimetre wave application

Unequally spaced resonant slotted‐waveguide antenna array with low side lobe level based on an open‐ended substrate integrated waveguide resonator

Contact Info

Product

Resources

About