A Switched-Beam Conformal Array With a 3-D Beam Forming Capability in C-Band

Jaeck, V.; Bernard, L.; Mahdjoubi, Kouroch; Sauleau, Ronan; Collardey, Sylvain; Pouliguen, Philippe; Potier, Patrick

doi:10.1109/tap.2017.2696418

Cited by 17 publications

(11 citation statements)

References 7 publications

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“…A significant enhancement of the antenna matching bandwidth has been achieved compared to the previous authors' work [16]. In addition, compared to other single patch conformal arrays, a bandwidth improvement has also been obtained [13][14][15][16][17]. Based on comparative studies in printed antennas [18], the stacked patch antenna can be considered as the appropriate single element to achieve a trade-off between wide bandwidth, radiation pattern stability in frequency band, simplicity, low cost, low profile and light weight.…”

Section: Introductionmentioning

confidence: 64%

“…One of the most crucial points of this kind of antennas is the manufacturing cost, weight and compactness. Over the last decades, printed circuit board (PCB) technology has been mainly used in array antennas for satisfying low cost, light weight and low profile requirements for several applications in aerospace or satellite communications [12][13][14][15]. Hence, double stacked patches are selected as single radiating elements.…”

Section: Introductionmentioning

confidence: 99%

“…In the second place, it is necessary to provide a perfect uniform distribution in amplitude and phase. Conformal patch antenna arrays are usually excited through several probe feeds and following coaxial lines, which are costly and low reliability in millimetre-wave applications [13,16,[21][22][23]. Then, in order to avoid errors in the feeding distribution, both radiating elements and feeding network are interconnected by commercial adapters instead of coaxial cables.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Circularly conformal patch array antenna with omnidirectional or electronically switched directive beam

Sánchez-Olivares

Sanchez-Dancausa

Masa‐Campos

2017

IET Microwaves, Antennas & Propagation

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A circularly conformal array antenna of double stacked microstrip patches is presented in two radiation versions: omnidirectional and electronically switched directive beam. Every single element is disposed on an eight‐faced regular prism structure built in 3D print technology. The omnidirectional pattern is achieved in the azimuth plane by using a microstrip uniform power divider to equally excite the circular antenna. The switched directive beam coverage is obtained by replacing the uniform power divider with an electronically switched power divider. Four switched beams of 90° angular separation are digitally configured. A fractional matching bandwidth of 17.2% has been measured for both omnidirectional and switched beam prototypes. The conformal antenna was entirely manufactured by using both printed circuit board and 3D printing technologies. Therefore, a very compact, low cost and light weight antenna design has been implemented, suitable to many applications such as Worldwide Interoperability for Microwave Access, wireless local area network, unmanned aerial vehicles or direction finding.

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Section: Introductionmentioning

confidence: 64%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Circularly conformal patch array antenna with omnidirectional or electronically switched directive beam

Sánchez-Olivares

Sanchez-Dancausa

Masa‐Campos

2017

IET Microwaves, Antennas & Propagation

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“…and tilting in directional radio links an radar applications [4], [5]. Rockets and projectiles that rotate during flight to increase stability, can compensate such rotations with cylindrical arrays and beamforming [6]. Satellite antennas were already despun for Intelsat III in the 1960s [7].…”

Section: Introductionmentioning

confidence: 99%

“…Compared to previous work on stabilizers [4], [5], the counter-movements are several wavelengths long. They can be combined with techniques that address beam misalignment [6]- [8]. Counter-movements keep the channel static at all times and not just between discreet positions [9], [10].…”

Section: Introductionmentioning

confidence: 99%

Keeping Mobile Communication Channels Static With Antenna Counter-Movements

Artner

2020

IEEE Access

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This work investigates how well mobile wireless communication channels can be kept static during device movements when the antenna performs appropriate counter-movements. A prototype is built and proof-of-concept experiments are performed for linear movement in the 2.45 GHz industrial, scientific and medical (ISM) frequency band in an anechoic chamber and in a static office environment. The technique is assessed quantitatively. The measured data show that fluctuations of receive power can be decreased by a factor of thousand as the antenna no longer experiences small scale fading. Changes in the phase are brought down to values smaller than 10 • and no longer scale with the traveled distance. Mathematical channel models are derived from the measurements. INDEX TERMS Antennas, communication channels, mobile communications, static, time-varying systems, vehicular.

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Electronically beam switched conformal microstrip array antenna for 5G applications

Shaw

Choukiker

2022

Int J RF Mic Comp-Aid Eng

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This article presents an electronically beam-switching conformal microstrip array antenna for 5G applications. The 1 Â 2 array microstrip antenna is used as a radiating element. They are placed on a hexagonal shape-holding structure to form the conformal geometry. The radiating elements are excited with a six-faced feeding network. It consists of one 3-way power divider and two 2-way power dividers. These power dividers (PDs) are serially connected and formed a six-faced regular structure with 12 output ports. To obtain the beam switching mechanism, the uniform PD is then loaded with RF switched PD. Six angular separation beams (Sectors I-VI) are obtained (each 60 ) with RF switches (1 SP3T and 3 SPDT). The response of the feed network is verified experimentally with a conformal array structure. The impedance bandwidth is well below À10 dB and measured for all switched sectors. The measured isolation among different output ports of the device is below À20 dB. The simple microstrip design technique makes the device suitable for beam switching in a large array configuration for 5G applications.

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A Switched-Beam Conformal Array With a 3-D Beam Forming Capability in C-Band

Cited by 17 publications

References 7 publications

Circularly conformal patch array antenna with omnidirectional or electronically switched directive beam

Circularly conformal patch array antenna with omnidirectional or electronically switched directive beam

Keeping Mobile Communication Channels Static With Antenna Counter-Movements

Electronically beam switched conformal microstrip array antenna for 5G applications

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