Conformal slotted waveguide array antenna

Liu, Yuanyun; Guo, Min; Zhong, Shun‐Shi

doi:10.1109/iwat.2012.6178397

Cited by 7 publications

(3 citation statements)

References 2 publications

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“…For example, elliptical arrays feature improved aerodynamics or reduced radar cross‐sections when compared to their linear counterpart (Y.‐Y. Liu et al., 2012). Specifically of interest are elliptical ring arrays, as the enclosed shape can be (electronically) rotated such that the main beam can be directed to any desired angle, while maintaining the ability to produce nulls in the azimuthal plane (Ioannides & Balanis, 2005; Misra & Mahanti, 2021).…”

Section: Introductionmentioning

confidence: 99%

Synthesis of Elliptically Shaped Aperiodic Antenna Arrays Subject to Complex Design Constraints

Geerarts,

Theis,

Smolders

et al. 2024

Radio Science

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State‐of‐the‐art conformal array pattern synthesis techniques typically suffer from a significant computational burden. This article builds upon the auxiliary array pattern synthesis technique, allowing the technique to work on elliptical contours. This deterministic method is both computationally efficient and capable of handling complex design cases with additional design constraints. In order to highlight the versatility and applicability, the method has been applied to an elliptical arc array comprised of Rampart antennas and an elliptical ring array using dipole elements. The results have been validated through full‐wave electromagnetic simulations, as well as physical measurements. Both arrays presented show good agreement with the proposed synthesis technique. Highlighting the ability to satisfy additional design constraints, such as enforcing a minimal element spacing or having a controlled beamformer‐network complexity.

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Section: Introductionmentioning

confidence: 99%

Synthesis of Elliptically Shaped Aperiodic Antenna Arrays Subject to Complex Design Constraints

Geerarts,

Theis,

Smolders

et al. 2024

Radio Science

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“…It was noted that this kind of configuration degrades radiation characteristics especially SLL. Another cylindrical conformal slotted array with large beam tilt (84°) is presented in [14].…”

Section: Introductionmentioning

confidence: 99%

“…It is worth mentioning that the designs presented in [11][12][13][14][15] are simulation based and their experimental or analytical validation is not available. In [16], an analytical design approach is adopted and equations are presented for a cylindrical curved slot array.…”

Section: Introductionmentioning

confidence: 99%

Nose-Cone Conformal Substrate-Integrated Waveguide Slot Array Antenna for X-Band Radar Applications

Khalil

Ahmed

2019

International Journal of Antennas and Propagation

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This paper presents the design of nose-cone conformal substrate-integrated waveguide (SIW) slot array antenna for modern radar applications. Firstly, the wave propagation characteristics have been investigated in doubly curved SIW, and it has been observed that they are non-uniform along the longitudinal direction of nose-cone conformal SIW. To ensure the constant wave propagation along the length of conformal SIW, the conventional design of SIW is reformulated for nose-cone conformal SIW and circuit model modification has been demonstrated. Secondly, the procedure for designing a SIW-based array on curved surfaces has been developed. In the proposed design, rectangular waveguide (RWG) to SIW feeding structure has been used to avoid spurious radiations. Finally, 1 × 6 element-based nose-cone conformal slotted array has been designed and compared with planar and cylindrical conformal arrays. It has been observed from the results that the nose-cone conformal slot array offers low sidelobe levels (SLLs) and high gain. For the validation of the proposed design, the conformal slotted array has been fabricated and measured, which exhibited a reasonable agreement between the measured and the simulated data.

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