Pillbox antenna design for millimeter-wave base-station applications

Holzman, E.L.

doi:10.1109/map.2003.1189649

Cited by 23 publications

(14 citation statements)

References 3 publications

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“…One of the simplest design, first described in the 50's, is the pillbox antenna [3] working with a two dimensional circular profile, limited by spherical phase aberrations. This pillbox configuration has been studied in several antenna designs (e.g., [4], [5], [6]) proposing a parabolic profile with one on-axis true focal point, resulting in phase aberrations which increase drastically with the scanning angle. To extend the scanning capabilities, Ruze [7] and Rotman [8] lenses were introduced, making use of discrete transmission lines connecting the outer lens contour and the radiating aperture.…”

Section: Introductionmentioning

confidence: 99%

Shaped Continuous Parallel Plate Delay Lens With Enhanced Scanning Performance

Doucet

Fonseca

Girard

et al. 2019

IEEE Trans. Antennas Propagat.

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Shaped continuous parallel plate waveguide delay lenses are proposed in this paper. The previous configurations introduced by the authors displayed a residual side lobe imbalance, showing the limitations of elliptical delay lens profiles, derived from a starting bifocal constrained lens. Polynomial profiles are proposed here as a way to enhance the scanning performance and the pattern shape. Optimized configurations demonstrate a reduction of the phase aberration levels over a large scanning range ([-30°, 30°]). The associated radiation patterns demonstrate lower and more balanced first side lobe levels (≅-18 dB), as compared to the previous elliptical approach (≅-13.2 dB). A validation has been proposed through the manufacturing and test of a prototype over the down-link Ka band ([27.5-31] GHz). Excellent radiation performance (HPBW, SLL) has been obtained experimentally over a wide angular range ([-31.5°, 31.5°]), including low scanning loss and high radiation stability over the entire frequency range. High radiation efficiencies are demonstrated with this fully metallic design, particularly suitable for space applications. The mechanical simplicity offered by the concept is also quite attractive for low-cost multi-beam platforms.

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Section: Introductionmentioning

confidence: 99%

Shaped Continuous Parallel Plate Delay Lens With Enhanced Scanning Performance

Doucet

Fonseca

Girard

et al. 2019

IEEE Trans. Antennas Propagat.

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“…Different functional layers of the antenna are rotated in plane to steer variation of elevation, azimuth, and polarization angles of the beam. Compared with an active phased array antenna, feed structures of this low-profile antenna are simpler [1]. It possesses high gain and flexible beam steering without T/R component employed.…”

Section: Introductionmentioning

confidence: 99%

Design of the Variable Inclination Continuous Transverse Stub Antenna Based on Rectangular Grating Slow-Wave Structure

Gao

Lei

Chen

et al. 2018

International Journal of Antennas and Propagation

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In order to solve difficulty in designing nonlinear slow-wave structure (SWS) of the variable inclination continuous transverse stub (VICTS) antenna, we combine the study of the semiopen rectangular grating SWS in the PPW with equivalent circuit theory of leaky-wave antenna to propose a theoretical model for SWS of VICTS element. The computations that the propagation characteristics of VICTS element are calculated by the theoretical model. The results are consistent with the fullwave simulation, which prove the validity and accuracy of the theoretical model. Lastly, by using the theoretical model, an approach for nonlinearly designing SWS is introduced and carried out. The approach improves the gain of the VICTS antenna 0.4 dB.

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“…In this Table as the radiation types of the presented works are different, the radiation performance is only compared in terms of bandwidth. We see that compared to the conventional metal counterpart presented in [23], this work improves the bandwidth by 31% thanks to inherent RGW features that allow to simply introduce a step as a discontinuity at the antenna aperture (see Fig. 1) which is not simply feasible in conventional waveguide or SIW counterparts.…”

Section: Resultsmentioning

confidence: 91%

Wide band ridge gap waveguide (RGW) fan beam antenna with low side lobes based on parabolic reflector principle

Sabbaghi

Razavi

Ostovarzadeh

2020

IET Microwaves, Antennas & Propagation

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In this paper, a wide band ridge gap waveguide (RGW) fan beam antenna with low side lobe level (SLL) is presented making use of parabolic offset reflector concept in antenna geometry. In the proposed topology, in contrast to TEM based RGW horn, the amplitude distribution across the antenna aperture can be easily controlled. Furthermore, thanks to intrinsic feature of parabolic reflector in generating plane wave front, the phase distribution uniformity across the proposed antenna aperture is better than that of the RGW horn. These two facts allow the proposed topology to provide lower SLL compared to the RGW horn. A prototype of the proposed structure is designed and fabricated. Simulation and measurement results also show that wider operating bandwidth compared to the RGW horn can also be achieved using this topology. For the designed sample, the impedance bandwidth of 41% with −20 dB ≤ SLL ≤ − 15 dB and gain of 11.8–15.5 dBi is achieved. Results show that the proposed topology can be a good candidate for realization of high gain wide band RGW fan beam antennas with low SLL.

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Pillbox antenna design for millimeter-wave base-station applications

Cited by 23 publications

References 3 publications

Shaped Continuous Parallel Plate Delay Lens With Enhanced Scanning Performance

Shaped Continuous Parallel Plate Delay Lens With Enhanced Scanning Performance

Design of the Variable Inclination Continuous Transverse Stub Antenna Based on Rectangular Grating Slow-Wave Structure

Wide band ridge gap waveguide (RGW) fan beam antenna with low side lobes based on parabolic reflector principle

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