A high-gain and high-bandwidth waveguide fed longitudinal slot doublets array antenna for X-band

Jha, Hare Ram; Singh, Shiva Nand

doi:10.1016/j.aeue.2016.09.017

Cited by 14 publications

(3 citation statements)

References 12 publications

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“…Slot array antennas have been widely used in many applications due to their high gain, high efficiency, low side lobe and simple structure [1][2], and are one of the most demanding classes of antennas in radar and communication systems [3][4][5]. In the X-band frequency range, slot array antennas have greater power processing capabilities, and play a crucial role in low loss, high gain and high bandwidth [6].…”

Section: Introductionmentioning

confidence: 99%

Analysis of improving the straightness of slender and thin-walled slot waveguides by pre-stressed reverse deformation

Zhang,

Zhao

2024

Third International Conference on Advanced Manufacturing Technology and Electronic Information (AMTEI 2023)

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This paper analyzes the reasons for machining deformation from the production process, physical characteristics and other factors of slender and thin-walled waveguides. The LS-DYNA explicit analysis was used to simulate the reverse deformation of pre-stress in slender thin-walled waveguides, and the ANSYS implicit analysis was used to simulate the rebound state after unloading. The application practice has verified the effectiveness, reliability and accuracy of the new process in improving the straightness of slender and thin-walled slot waveguides.

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Section: Introductionmentioning

confidence: 99%

Analysis of improving the straightness of slender and thin-walled slot waveguides by pre-stressed reverse deformation

Zhang,

Zhao

2024

Third International Conference on Advanced Manufacturing Technology and Electronic Information (AMTEI 2023)

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“…[5][6][7] The series fed slot array antennas do not need to corporate feed network, and therefore, they take the advantages of lower weight, compactness, and lower cost compared to parallel fed slot arrays. The series fed slot arrays with longitudinal slots have been studied in rectangular waveguides, 2,8 substrate integrated waveguide, 9,10 and gap waveguide 7,11 technologies. Transverse series fed slot antennas 4,[12][13][14] have the problem of grating lobes since the spacing between the adjacent slots is more than the free space wavelength.…”

Section: Introductionmentioning

confidence: 99%

Development of a compact transverse slot array antenna using corrugation in groove gap waveguide technology

Ostovarzadeh

Parizi

2022

Int J Communication

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Summary We present the proof of concept of a compact slot array antenna with proper side lobe level in groove gap waveguide (GGW) technology. Four transverse slots are etched at the GGW broad wall along with the nulls of standing TE10 wave existing inside the shorted GGW. To decrease the sidelobes and antenna size, corrugations are applied through the wave path inside the GGW. Proper use of corrugations can reduce the wavelength inside the GGW leading to reduction of the distance between adjacent transverse slots, which can help to suppress the grating lobe problem and consequently enhance the radiation efficiency, which is a challenge in transvers slot array antennas. The designed antenna is optimized to achieve maximum gain, lowest grating lobe level, and return loss at 15 GHz using HFSS simulator. The achieved gain is about 13 dBi, and the SLL is better than 15 dB. To confirm the simulation results, the designed antenna was fabricated and tested. Both simulation and measurement results confirm that the grating lobes are well suppressed at the antenna operating frequency.

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“…Recently, corporate-feed hollow-waveguide slot arrays in millimeter wave (mmW) band with multilayer structures have been reported [4][5][6][7], and by applying the corporatefeed method, impedance bandwidths of 8% to 12% (at VSWR < 2) can be obtained without exhibiting any beam squint. An efficient antenna fabrication method known as diffusion bonding is used in the antenna array fabrication, and up to 80% of radiation efficiency can be achieved.…”

Section: Introductionmentioning

confidence: 99%

A Low VSWR and High Efficiency Waveguide Feed Antenna Array

Zhao

Liu

et al. 2018

Wireless Communications and Mobile Computing

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A low VSWR and high efficiency antenna array operating in the Ku band for satellite communications is presented in this paper. To achieve high radiation efficiency and broad enough bandwidth, all-metal radiation elements and full-corporate waveguide feeding network are employed. As the general milling method is used in the multilayer antenna array fabrication, the E-plane waveguide feeding network is adopted here to suppress the wave leakage caused by the imperfect connectivity between adjacent layers. A 4 × 8 elements array prototype was fabricated and tested for verification. The measured results of proposed antenna array show bandwidth of 6.9% (13.9–14.8 GHz) for VSWR < 1.5. Furthermore, antenna gain and efficiency of higher than 22.2 dBi and 80% are also exhibited, respectively.

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A high-gain and high-bandwidth waveguide fed longitudinal slot doublets array antenna for X-band

Cited by 14 publications

References 12 publications

Analysis of improving the straightness of slender and thin-walled slot waveguides by pre-stressed reverse deformation

Analysis of improving the straightness of slender and thin-walled slot waveguides by pre-stressed reverse deformation

Development of a compact transverse slot array antenna using corrugation in groove gap waveguide technology

A Low VSWR and High Efficiency Waveguide Feed Antenna Array

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