A Novel Broadband Microstrip to Waveguide Transition at W band with High Manufacturing Tolerance Suitable for MMIC Packaging

Sarkar, Mousumi De; Majumder, Arijit

doi:10.1109/imarc.2018.8877214

Cited by 9 publications

(3 citation statements)

References 16 publications

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“…However, this limits the maximum number of steps and therefore the theoretically achievable insertion loss. Because this became problematic in our RO3003-based design, an additional substrate taper was introduced, similar to [32]. The following steps in the bottom copper are designed based on a Chebychev transformer.…”

Section: A Harmonic Radar Systemmentioning

confidence: 99%

Expanding the Capabilities of Automotive Radar for Bicycle Detection With Harmonic RFID Tags at 79/158 GHz

Braun

Schoepfel

Kwiatkowski

et al. 2023

IEEE Trans. Microwave Theory Techn.

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Although traffic safety continues to improve overall, fatalities of vulnerable traffic participants and pedal cyclists specifically have reached 30-year highs. While automotive radar sensors continue to advance and are integrated in more and more vehicles, they are not ideally suited to detect pedal cyclists, especially in complicated traffic scenarios. To mitigate the problem of the lower radar-cross section (RCS) of the cyclist, equipping them with harmonic radio frequency identification (RFID) tags is proposed. The presented system showcases the benefits of this approach by being able to conduct conventional automotive radar measurements and detect tags simultaneously. In this work, we present the printed-circuit boards (PCBs) and the necessary chipset, while especially focusing on the design of a power-efficient harmonic RFID tag. By improving the gain per current of an amplifier chain, the tag enables a range sufficient for urban scenarios while consuming little enough current to be powered by battery-operated lights. This enables the detection of pedal cyclists even in complicated scenarios at a distance of up to 80 m.

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Section: A Harmonic Radar Systemmentioning

confidence: 99%

Expanding the Capabilities of Automotive Radar for Bicycle Detection With Harmonic RFID Tags at 79/158 GHz

Braun

Schoepfel

Kwiatkowski

et al. 2023

IEEE Trans. Microwave Theory Techn.

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“…However, W-band lters typically consist of high-Q waveguide designs and are often standalone modules, which poses challenges for their integration with radio-frequency (RF) circuits on the same plane. Various methods and structures for connecting cavity lters to RF circuits have been proposed in recent years, including nline [1], microstrip probes [2], or other specially-shaped transition structures [3][4].…”

Section: Introductionmentioning

confidence: 99%

A Novel W-band Substrate Integrated Microstrip to Ultra-thin Cavity Filter Transition

Cao,

Tang,

Liu

et al. 2024

Preprint

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A novel substrate integrated microstrip to ultra-thin cavity filter transition operating in the W-band is proposed in this letter. The filter includes a conventional tapered microstrip transition structure, which guides the electromagnetic field from the microstrip line to the reduced-height dielectric-filled waveguide, and an air-filled matching cavity which is placed between the dielectric-filled waveguide and the ultra-thin cavity filter. The height of the microstrip line, dielectric-filled waveguide and the ultra-thin cavity filter are the same, enabling seamless integration within a planar radio-frequency (RF) circuit. To facilitate testing, mature finline transition structures are integrated at both ends of the microstrip line during fabrication. The simulation results of the fabricated ultra-thin cavity filter with the finline transition structure, with a passband of 91.5–96.5 GHz, has an insertion loss of less than 1.9 dB and a return loss better than − 20 dB. And the whole structure has also been measured which achieves an insertion loss better than 2.6 dB within the filter's passband, including the additional insertion loss introduced by the finline transitions.

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“…The waveguide transition between the feeding network in PCB and the phased antenna array is more appropriate than the coaxial connections and transitions due to its simple installation and maintenance. Some recent research also demonstrated the advantages of waveguide transitions in RF communication applications in its low loss, wideband performance and simple structure [3]- [8].…”

Section: Introductionmentioning

confidence: 99%

Multiport Beamforming System Based on Reconfigurable Waveguide Phased Antenna Array for Satellite Communication Applications

Wei

Arnold

2023

IEEE Access

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In this article, a multiport beamforming system based on the reconfigurable waveguide phased antenna array is presented, which is fed by the microstrip single-layer multiport feeding network.The reconfigurable waveguide transitions and waveguide linear-polarized/circular-polarized antenna arrays have high flexibility to meet different requirements in beamforming applications according to the design purposes, which is also suitable for satellite communication applications with separate transmitted and received systems. Both simulated and experimental results are presented for the demonstration. Results indicate that the multiport beamforming system based on the reconfigurable waveguide phased antenna array could provide wideband performance at both K/Ka-band with flexible functions compared with the conventional single-layer beamforming systems. Beamforming, reconfigurable, dual-band, satellite communication. INDEX TERMS

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A Novel Broadband Microstrip to Waveguide Transition at W band with High Manufacturing Tolerance Suitable for MMIC Packaging

Cited by 9 publications

References 16 publications

Expanding the Capabilities of Automotive Radar for Bicycle Detection With Harmonic RFID Tags at 79/158 GHz

Expanding the Capabilities of Automotive Radar for Bicycle Detection With Harmonic RFID Tags at 79/158 GHz

A Novel W-band Substrate Integrated Microstrip to Ultra-thin Cavity Filter Transition

Multiport Beamforming System Based on Reconfigurable Waveguide Phased Antenna Array for Satellite Communication Applications

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