Layered lens antennas

Datthanasombat, S.; Prata, A.; Arnaro, L.R.; Harrell, Jefferson A.; Spitz, S.; Perret, J.D.

doi:10.1109/aps.2001.959839

Cited by 51 publications

(30 citation statements)

References 3 publications

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“…They were first implemented in the form of two interconnected planar arrays of dipole antennas, one for receiving and one for transmitting, where each antenna on the receiver side was connected via a delay line to an antenna on the transmit side, as depicted in Figure 1D. Through the 1990s, the transmitarrays evolved from interconnected antenna arrays to layered metallic structures that were essentially the functional extensions of FSS [18][19][20] with efficiency limited by the difficulty to control the transmission phase over a 2π range while maintaining a high enough amplitude. Finally, compact quasi-transparent transmitarrays or phase-shifting surfaces, able to cover a 2π-phase range, were demonstrated in 2010 [21].…”

Section: Introductionmentioning

confidence: 99%

Design, concepts, and applications of electromagnetic metasurfaces

2018

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Abstract:The paper overviews our recent work on the synthesis of metasurfaces and related concepts and applications. The synthesis is based on generalized sheet transition conditions (GSTCs) with a bianisotropic surface susceptibility tensor model of the metasurface structure. We first place metasurfaces in a proper historical context and describe the GSTC technique with some fundamental susceptibility tensor considerations. On this basis, we next provide an in-depth development of our susceptibility-GSTC synthesis technique. Finally, we present five recent metasurface concepts and applications, which cover the topics of birefringent transformations, bianisotropic refraction, light emission enhancement, remote spatial processing, and nonlinear second-harmonic generation.

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Section: Introductionmentioning

confidence: 99%

Design, concepts, and applications of electromagnetic metasurfaces

2018

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“…The reason is that the horn has a more uniform and symmetrical electric field distribution in both the E and H planes, as shown in Fig. 5(b), which is close to that of the ideal feed source applied [14] to determine the compensation phases for each element of the transmitarray, while the fields from the planar antenna is only uniform in the H plane, as shown in Fig. 5(a), and not uniform in the E plane.…”

Section: Resultsmentioning

confidence: 78%

“…The focal distance F is 130 mm, and F/D ratio of the antenna is 0.64. The compensation phase of each element was obtained using the following equation [14]:…”

Section: Design Of the Transmitarray And The Numerical Resultsmentioning

confidence: 99%

A K-Band Flat Transmitarray Antenna With a Planar Microstrip Slot-Fed Patch Antenna Feeder

Chen¹,

Ge²

2016

PIER C

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Abstract-A thin phase-correcting element that consists of four identical metallic layers and three identical dielectric layers is presented for the design of microwave and millimeter-wave transmitarrays. The metallic layers consist of octagon conducting strips, which are tuned to obtain the desired phase compensation on an incident wave, while maintaining high amplitude of transmission coefficient. A transmitarray has been designed at K band with the use of the element. Fed by a standard horn and three planar slot-fed patch antennas with different beamwidths alternately, the wave-focusing performance of the transmitarray was demonstrated by simulations and experiments.

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“…The significant point of designing a unit cell for discrete lens antenna is to obtain the essential requirement phase shift range of up to 360º. Hence, the required phase error correction of an individual unit cell element can be determined using the following equation [12]:…”

Section: Element Design Structurementioning

confidence: 99%

A compact flat lens antenna with aperture-coupled patch elements

Awaleh

Dahlan

Jenu

2014

2014 IEEE Asia-Pacific Conference on Applied Electromagnetics (APACE)

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Abstract-A compact 7 x 7 flat lens antenna design for Xband applications is presented in this paper. A new design with aperture-coupled E-shaped patch elements at 10 GHz is simulated and analyzed. This antenna design is realized by using two back-to-back printed patches with slotted common ground plane and feed horn antenna. The transmission loss obtained of 2.2 dB is sufficiently low. A 320º transmission phase range for the E-shaped patch unit cell is achieved with less than 1.5 dB of deviation in the transmission loss level.The proposed design uses a simple technique and less manufacturing complexity for transmission phase control.

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Layered lens antennas

Cited by 51 publications

References 3 publications

Design, concepts, and applications of electromagnetic metasurfaces

Design, concepts, and applications of electromagnetic metasurfaces

A K-Band Flat Transmitarray Antenna With a Planar Microstrip Slot-Fed Patch Antenna Feeder

A compact flat lens antenna with aperture-coupled patch elements

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