Satellite multibeam antennas at airbus defence and space: State of the art and trends

Wolf, Helmut; Schneider, Michael; Stirland, Simon; Scouarnec, Didier

doi:10.1109/eucap.2014.6901722

Cited by 14 publications

(7 citation statements)

References 3 publications

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“…Figures of merit are shown in Figure 6. Since the power consumption limits the number of AE to around 100 [12], the SNR is of 20 dB with a beam crosstalk of 21 dB. Looking to the power consumption plot, a total of 896 W is consumed, in which approximately half derives from the optical devices and the other half from the RF components.…”

Section: End-to-end System Dimensioningmentioning

confidence: 99%

Modular and smooth introduction of photonics in high-throughput communication satellites – perspective of project BEACON

Duarte

Prata

Nogueira

et al. 2019

International Conference on Space Optics — ICSO 2018

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In this paper we present a 4-channel silicon photonic true-time delay (TTD) beamformer in which the phase of each channel is automatically adjusted in real-time. Beamforming was demonstrated with a 1 Gb/s QPSK signal carried at 28 GHz. The demonstration comprised the following custom made devices: two arrays of GaAs Mach-Zehnder modulators (MZMs), a radiation-hardened 7-core erbium-doped fiber amplifier (MC-EDFA) for power boosting, and a silicon photonic integrated circuit (PIC) containing a 4 × 1 TTD optical beamformer network (OBFN). Having provided a successful proof-of-concept demonstration, the dimensioning of an end-to-end photonic-aided payload receiver is here studied. It comprises the proposed OBFN fed by 100 antenna elements (AEs) in a multibeam scenario, also providing an estimation of the system's power consumption.

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Section: End-to-end System Dimensioningmentioning

confidence: 99%

Modular and smooth introduction of photonics in high-throughput communication satellites – perspective of project BEACON

Duarte

Prata

Nogueira

et al. 2019

International Conference on Space Optics — ICSO 2018

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“…3). Following instead the method described in Section 2, using Equations (1) to (4), and FEST3D to simulate each DBB, we can obtain all b i and l i in the filter. All physical dimensions are detailed in Table 1, and the frequency response is shown in grey line in Fig.…”

Section: Design Examplementioning

confidence: 99%

“…In ground terminals, it is easy to find complex structures with low-pass filters and bends which are conveniently allocated to obtain a more compact terminal [1][2][3]. Multi-beam payloads are triggering the need of very compact output sections because up to hundreds of waveguide filters and bends are used to accomplish different functions [4]. In fact, once a signal has been amplified, it needs to be filtered and channelized/combined depending on the terminal/payload configuration [5].…”

Section: Introductionmentioning

confidence: 99%

Routing With Classical Corrugated Waveguide Low-Pass Filters With Embedded Bends

Teberio¹,

Percaz²,

Arregui³

et al. 2018

PIER Letters

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Abstract-A very simple design method to embed routing capabilities in classical corrugated filters is presented in this paper. The method is based on the calculation of the heights and lengths of the so-called filters design building blocks, by means of a consecutive and separate extraction of their local reflection coefficients along the device. The proposed technique is proved with a 17th-order Zolotarevfilter whose topology is bent twice so that the input and output ports are in the same plane while preserving the in-line filters behaviour. This new filter allows the possibility of eliminating subsequent bending structures, reducing the insertion loss, weight, and PIM.

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“…trends of a greater number of filters that must be accommodated in the payload, particularly in multi-beam satellites [6], and the increase of the the carrier frequencies are already a reality. Similarly, the industry is demanding reductions in manufacturing costs pursuing to eliminate tuning screws and guarantee successful first-shot fabrications.…”

mentioning

confidence: 99%

“…Similarly, the industry is demanding reductions in manufacturing costs pursuing to eliminate tuning screws and guarantee successful first-shot fabrications. Finally, in such applications, waveguide bends can often be found after the filters [6], [7], misusing the available volume/mass budget and increasing the insertion loss. Moreover, when two different structures are used (screwed by their flanges), an additional negative impact is produced on the Passive Intermodulation (PIM) parameter [8], [9].…”

mentioning

confidence: 99%

Rectangular Waveguide Filters With Meandered Topology

Teberio

Percaz

Arregui

et al. 2018

IEEE Trans. Microwave Theory Techn.

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In this paper, a new topology for rectangular waveguide band-pass and low-pass filters is presented. A simple, accurate and robust design technique for these novel meandered waveguide filters is provided. The proposed filters employ a concatenation of ±90º E-plane mitered bends (±90ºEMBs) with different heights and lengths whose dimensions are consecutively and independently calculated. Each ±90ºEMB satisfies a local target reflection coefficient along the device so that they can be calculated separately. The novel structures allow to drastically reduce the total length of the filters and to embed bends if desired, or even to provide routing capabilities. Furthermore, the new meandered topology allows the introduction of transmission zeros above the passband of the low-pass filter, which can be controlled by the free parameters of the ±90ºEMBs. A band-pass and a low-pass filter with meandered topology have been designed following the proposed novel technique. Measurements of the manufactured prototypes are also included to validate the novel topology and design technique, achieving excellent agreement with the simulated results.

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Satellite multibeam antennas at airbus defence and space: State of the art and trends

Cited by 14 publications

References 3 publications

Modular and smooth introduction of photonics in high-throughput communication satellites – perspective of project BEACON

Modular and smooth introduction of photonics in high-throughput communication satellites – perspective of project BEACON

Routing With Classical Corrugated Waveguide Low-Pass Filters With Embedded Bends

Rectangular Waveguide Filters With Meandered Topology

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