Low-Profile Radially Corrugated Horn Antenna

Moy-Li, Hon Ching; Sánchez‐Escuderos, Daniel; Antonino‐Daviu, Eva; Ferrando‐Bataller, Miguel

doi:10.1109/lawp.2017.2767182

Cited by 18 publications

(12 citation statements)

References 11 publications

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“…The unit cell described in previous section is the constitutive element of the microwave planar lens proposed in this letter. The lens is illuminated by an RCHA as depicted in Figure . This feeder is able to illuminate the lens more uniformly than a simple rectangular aperture.…”

Section: Dual‐polarized Microwave Planar Lensmentioning

confidence: 99%

“…The optimized lens has been fabricated using a photolithographic process to print the metallic sections on the dielectric substrate (Neltec NY9220 with ε r = 2.2 and tan δ = 0.009), whereas the RCHA has been fabricated in aluminum, as described in Ref. Foam layers ( ε r = 1.05 and tan δ = 0.0135) have been inserted between the different layers of the lens, and between the lens and the RCHA, to guarantee the separation between them. Figure shows two pictures of the prototype.…”

Section: Prototype and Measurementsmentioning

confidence: 99%

“…As it can be seen, the gain of the antenna, quite similar to the simulated values, is above 14.44 dBi, which means an increment of 2 dB with respect to the measured gain of the feeder, and the radiation efficiency is better than 75% within the operating frequency band (12.55‐13.1 GHz). Losses are mainly produced by the foam and dielectric layers, though it is worth mentioning that part of the losses are produced by the RCHA, which is made of aluminum and includes a small foam layer …”

Section: Prototype and Measurementsmentioning

confidence: 99%

“…Losses are mainly produced by the foam and dielectric layers, though it is worth mentioning that part of the losses are produced by the RCHA, which is made of aluminum and includes a small foam layer. 12…”

Section: Prototype and Measurementsmentioning

confidence: 99%

“…This operation is similar to the one presented by the so‐called transmitarray antennas, in which the phase profile given by the feeder, placed at a medium‐long distance (typically F/D ≈0.85), is properly flattened. In our case, the FSS is placed at a shorter distance (F/D = 0.24) from the feeder (a radially corrugated horn antenna [RCHA]) to minimize the spill‐over losses and, in turn, increment the gain of the feeder. This planar lens behavior permits the use of unit cells capable of offering less than 360° of phase shift.…”

Section: Introductionmentioning

confidence: 99%

See 4 more Smart Citations

Dual‐polarized planar lens antenna designed with a quad‐ridged frequency selective surface

Moy-Li

Sánchez‐Escuderos

Antonino‐Daviu

et al. 2018

Micro & Optical Tech Letters

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This letter presents a microwave planar lens illuminated by a radially corrugated horn antenna. The lens is formed by a set of 5×5 multilevel unit cells working as a frequency selective surface. Each layer of the unit cells is formed by a square metallic ring with two sets of orthogonal stubs. The length of each set of stubs controls the transmission phase shift for each polarization, so that the lens can be configured independently for two orthogonal polarizations. The lens presented in this letter makes use of this operation to compensate the phase profile of the radiation pattern generated by the feeder. A prototype, with the lens located at 0.59 λ from the feeder, has been fabricated. Measured results show a maximum gain above 14.44 dBi within the operating frequency band (12.55‐13.10 GHz), and a crosspolar level below −32 dB within the HPBW.

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Section: Dual‐polarized Microwave Planar Lensmentioning

confidence: 99%

Section: Prototype and Measurementsmentioning

confidence: 99%

Section: Prototype and Measurementsmentioning

confidence: 99%

Section: Prototype and Measurementsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Dual‐polarized planar lens antenna designed with a quad‐ridged frequency selective surface

Moy-Li

Sánchez‐Escuderos

Antonino‐Daviu

et al. 2018

Micro & Optical Tech Letters

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Additively manufactured trapezoidal grooves for wideband and high gain Ku‐band antenna

Asci

Yeğin

2019

Int J RF Microw Comput Aided Eng

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Grooves around aperture antennas are known to be instrumental in obtaining directive antenna patterns. The shapes of the grooves are often restricted to rectangular or triangular due to manufacturing difficulties in traditional metal machining, and because of this reason, the effect of groove shape on antenna performance is often overlooked. The aim of this study is to analyze different groove shapes with the help of additive manufacturing. Waveguide slot fed, dual cavity aperture antenna with grooves is designed and the effect of groove shapes on antenna performance is studied at Ku band. Two antennas with and without grooves are built using 3D printing technology. Measured antenna performance reveals 5 GHz bandwidth covering 10 to 15 GHz for Ku-band satellite communications and part of the X-band applications. Proposed antenna achieves 13.25 dBi peak gain at 14 GHz and the gain is better than 11.25 dBi over the entire Ku-band uplink and downlink frequency bands. K E Y W O R D S

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Compact low‐profile wideband open‐ended rectangular waveguide antenna with corrected radiation patterns

Sun

Dou

2022

Int J RF Mic Comp-Aid Eng

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A compact low-profile wideband open-ended rectangular waveguide (RWG) antenna is proposed in the Ka-band with corrected radiation patterns. The antenna is developed on a piece of metal with the same size as the standard flange of WR-28 waveguide to facilitate the integration. To improve the impedance matching, waveguide steps are introduced at the open end of RWG. Three grooves are then presented on the top of antenna to suppress the surface waves. Finally, the grooves are modified at the corner to reduce the difference of radiation patterns in the E-plane and H-plane. To verify the proposed antenna, a prototype is fabricated and measured. The impedance bandwidth of 27.3-35.6 GHz (in a fraction of 26.3%) with S 11 j j< À 20 dB is realized. The corresponding gain over the operating band ranges from 9.1 to 10.2 dBi. Similar radiation patterns are measured in the E-plane and H-plane. This antenna is quite promising as a feeding source for the applications of reflectarray, reflector, transmitarray, and lens.

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Low-Profile Radially Corrugated Horn Antenna

Cited by 18 publications

References 11 publications

Dual‐polarized planar lens antenna designed with a quad‐ridged frequency selective surface

Dual‐polarized planar lens antenna designed with a quad‐ridged frequency selective surface

Additively manufactured trapezoidal grooves for wideband and high gain Ku‐band antenna

Compact low‐profile wideband open‐ended rectangular waveguide antenna with corrected radiation patterns

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