A Low-Profile Phase Correcting Solution to Improve Directivity of Horn Antenna

AbstractConformal transformation optics is employed to enhance an H-plane horn’s directivity by designing a graded-index all-dielectric lens. The transformation is applied so that the phase error at the aperture is gradually eliminated inside the lens, leading to a low-profile high-gain lens antenna. The physical space shape is modified such that singular index values are avoided, and the optical path inside the lens is rescaled to eliminate superluminal regions. A prototype of the lens is fabricated using three-dimensional printing. The measurement results show that the realized gain of an H-plane horn antenna can be improved by 1.5–2.4 dB compared to a reference H-plane horn.

Download Full-text

High-gain and low-profile metalens-horn antenna based on the fishnet metamaterial

2015 USNC-URSI Radio Science Meeting (Joint with AP-S Symposium) ◽

10.1109/usnc-ursi.2015.7303333 ◽

2015 ◽

Author(s):

David Osuna ◽

Miguel Beruete ◽

Jorge Teniente ◽

Miguel Navarro-Cia

Keyword(s):

Horn Antenna ◽

High Gain ◽

Low Profile

Download Full-text

Design of Low-Profile Metamaterial-Loaded Substrate Integrated Waveguide Horn Antenna and Its Array Applications

IEEE Transactions on Antennas and Propagation ◽

10.1109/tap.2017.2700231 ◽

2017 ◽

Vol 65 (7) ◽

pp. 3732-3737 ◽

Cited By ~ 13

Author(s):

Yang Cai ◽

Yingsong Zhang ◽

Liu Yang ◽

Yufan Cao ◽

Zuping Qian

Keyword(s):

Horn Antenna ◽

Substrate Integrated Waveguide ◽

Low Profile

Download Full-text

A 6.8GHz low-profile H-plane ridged SIW horn antenna

2015 IEEE 4th Asia-Pacific Conference on Antennas and Propagation (APCAP) ◽

10.1109/apcap.2015.7374390 ◽

2015 ◽

Cited By ~ 1

Author(s):

Ankang Liu ◽

Yilong Lu

Keyword(s):

Horn Antenna ◽

Low Profile

Download Full-text

Low profile H-plane horn antenna based on half mode substrate integrated waveguide technique

20th Iranian Conference on Electrical Engineering (ICEE2012) ◽

10.1109/iraniancee.2012.6292567 ◽

2012 ◽

Cited By ~ 4

Author(s):

Seyed Ali Razavi ◽

Mohammad H Neshati

Keyword(s):

Horn Antenna ◽

Substrate Integrated Waveguide ◽

Low Profile

Download Full-text

Creating a Gain Improvement Technique for a Horn Antenna using a Metamaterial Structure Inserted with a Thin Dielectric Sheet

The Open Electrical & Electronic Engineering Journal ◽

10.2174/1874129001913010030 ◽

2019 ◽

Vol 13 (1) ◽

pp. 30-40 ◽

Cited By ~ 1

Author(s):

Paowphattra Kamphikul ◽

Ukrit Mankong ◽

Rangsan Wongsan

Keyword(s):

Electromagnetic Fields ◽

Horn Antenna ◽

Antenna System ◽

Dielectric Slab ◽

Good Qualitative Agreement ◽

Metamaterial Structure ◽

Electromagnetic Band Gap ◽

Design Procedures ◽

Low Profile ◽

A New Technique

Objective: This paper proposed a new technique for the metamaterial on the structure of the curved-woodpile Electromagnetic Band Gap (EBG) inserted with a dielectric slab for gain improvement in a conventional rectangular horn antenna. Methods: We described a method to enhance gain by transferring the electromagnetic fields from the aperture of a horn through the EBG structure. Furthermore, we present the design procedures for inserting a dielectric slab into two layers of the EBG structure for the reduction of distance between the horn and proposed EBG structure. Results and Conclusions: Such a proposed technique not only has the advantage of decreasing the total length of the antenna system but also providing higher gain with a low profile structure. This idea has been verified by both simulation and experimental results. The fabricated antenna can achieve 23.9 dBi of gain or higher than the gain, which is obtained using a conventional rectangular horn antenna at around 7 dBi at an operating frequency of 10 GHz. It is apparent that a good qualitative agreement between the measurements and simulations was achieved.

Download Full-text