| 1. |
- Chernikov, Viktor, 1998, et al.
(författare)
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Design Considerations for Focal-Plane Array Antennas for 6G Millimeter-Wave Backhaul Links
- 2023
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Ingår i: IEEE Antennas and Propagation Society, AP-S International Symposium (Digest). - 1522-3965. ; 2023-July, s. 765-766
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Konferensbidrag (refereegranskat)abstract
- We present three designs of W-band Focal-Plane Array (FPA) antennas as possible candidates for the next-generation millimeter-wave (mmWave) backhaul links. The considered FPAs comprise different types of waveguide antenna elements and are optimized to feed a prime-focus reflector with 400 mm aperture diameter. The main design goal is to realize a high directivity (50 dBi) with minimum beam scan loss, while complying with the strick side-lobe level requirements (ETSI class 3).
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| 2. |
- Stek, Tim, et al.
(författare)
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Over-the-Air Noise Figure Measurement in a Reverberation Chamber for Low-Noise Devices
- 2023
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Ingår i: IEEE Antennas and Propagation Society, AP-S International Symposium (Digest). - 1522-3965. ; 2023-July, s. 435-436
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Konferensbidrag (refereegranskat)abstract
- Measuring the noise figure (NF) of highly-integrated wireless devices can be a challenging task. This paper shows that the reverberation-chamber-noise-figure (RCN) method can be used to determine this characteristic of a device with an NF below 4 dB at sub-GHz frequencies. This is a significantly lower NF and operating frequency as compared to the device used for the original RCN method. The lower NF is measured using the simplified RCN method, which has an improved uncertainty over the original RCN method. To accommodate for the operating frequency below 1 GHz, a larger reverberation chamber is used. An uncertainty analysis shows that the NF could be estimated within 0.52 dB uncertainty and the gain within 0.91 dB.
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| 3. |
- Tsai, Yu Zhan, et al.
(författare)
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Millimeter-Wave Holographic Metasurface Leaky-Wave Multi-Beam Antennas with Gain and Polarization Control
- 2023
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Ingår i: IEEE Antennas and Propagation Society, AP-S International Symposium (Digest). - 1522-3965. ; 2023-July, s. 65-66
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Konferensbidrag (refereegranskat)abstract
- This paper introduces a holographic multiple-beam leaky-wave antenna (LWA) synthesized by metasurfaces with controllable polarization and amplitude of the radiated beams. The interference pattern is first obtained by the inner product of the reference and object wave vector field functions, the former being that of a cylindrical source surface wave, the latter comprising the vector sum of the phase projections onto the hologram of the various incident plane waves, the directions, amplitudes and polarizations of which are to be reproduced as LWA beams upon illumination of the synthesized hologram by the same source. By DC-biasing and amplitude modulating the sinusoidal interference pattern to fit the surface reactance range of the metasurface patch arrays for the synthesis, the spatial distribution of the required surface impedance over the holographic surface is then devised. Simulations of designs by this approach check well with expected results in terms of the beam direction, amplitude, and polarizations.
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| 4. |
- Warnick, K. F., et al.
(författare)
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Array Mutual Impedances Can Be Determined from Antenna Range Pattern Measurements
- 2023
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Ingår i: IEEE Antennas and Propagation Society, AP-S International Symposium (Digest). - 1522-3965. ; 2023-July, s. 767-768
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Konferensbidrag (refereegranskat)abstract
- The relationship between array radiation patterns and mutual coupling can be used to determine mutual impedances from measured embedded element patterns (EEPs). We review the EEP loading condition transformations that form the basis of the method and validate the proposed technique experimentally.
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| 5. |
- Yang, Jian, 1960, et al.
(författare)
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A UWB Millimeter-Wave Dual-polarized Large-Scanning Array Antenna for Mobile Handset
- 2023
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Ingår i: IEEE Antennas and Propagation Society, AP-S International Symposium (Digest). - 1522-3965. ; 2023-July, s. 1189-1190
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Konferensbidrag (refereegranskat)abstract
- A multilayered PCB dual-polarized phase array antenna covering the frequency range of 24 - 40 GHz is presented in this paper. The antenna is aimed to be used for mobile handsets with large beam scanning capability with simple geometry and low-cost manufacturing in 5G wireless communication systems.
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