Plastic 95-GHz rectangular waveguides by micro molding technologies

Sammoura, Firas; Sui, Yu; Cai, Ying; Yu, Chen; Elamaran, B.; Lin, Liwei; Chiao, J.-C.

doi:10.1016/j.sna.2005.07.020

Cited by 24 publications

(14 citation statements)

References 6 publications

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“…Nevertheless, at 110 GHz, the dissipative attenuation of 0.036 dB/λ g (or 11 dB/m) is commensurate with the commercial machined aluminum waveguide performance of 0.032 dB/λ g (or 10 dB/m) shown in Fig. 9 and much better than the micromolded waveguide having 0.116 dB/λ g (or 27.6 dB/m) at 92.6 GHz [23].…”

Section: Measured S-parameter Resultssupporting

confidence: 63%

“…A low-cost alternative for the manufacture of MPRWGs is to use micromolding (which include injection molding and hot embossing), followed by a traditional metal plating process. WR-10 gold electroplated plastic waveguides [23] and filters [24] have been reported. The former demonstrated a worst case return loss of 14-dB across W-band and a minimum attenuation of 0.116 dB/λ g (or 27.6 dB/m) at 92.5 GHz [23].…”

mentioning

confidence: 99%

“…WR-10 gold electroplated plastic waveguides [23] and filters [24] have been reported. The former demonstrated a worst case return loss of 14-dB across W-band and a minimum attenuation of 0.116 dB/λ g (or 27.6 dB/m) at 92.5 GHz [23]. The associated fifth-order inductive iris filter demonstrated a worst case passband return loss of 12 dB and attenuation of 3.49 dB at 95.4 GHz [24].…”

mentioning

confidence: 99%

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3-D Printed Metal-Pipe Rectangular Waveguides

D'Auria

Otter

Hazell

et al. 2015

IEEE Trans. Compon., Packag. Manufact. Technol.

262

135

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This paper first reviews manufacturing technologies for realizing air-filled metal-pipe rectangular waveguides (MPRWGs) and 3-D printing for microwave and millimeter-wave applications. Then, 3-D printed MPRWGs are investigated in detail. Two very different 3-D printing technologies have been considered: low-cost lower-resolution fused deposition modeling for microwave applications and higher-cost high-resolution stereolithography for millimeter-wave applications. Measurements against traceable standards in MPRWGs were performed by the U.K.'s National Physical Laboratory. It was found that the performance of the 3-D printed MPRWGs were comparable with those of standard waveguides. For example, across X-band (8-12 GHz), the dissipative attenuation ranges between 0.2 and 0.6 dB/m, with a worst case return loss of 32 dB; at W-band (75-110 GHz), the dissipative attenuation was 11 dB/m at the band edges, with a worst case return loss of 19 dB. Finally, a high-performance W-band sixth-order inductive iris bandpass filter, having a center frequency of 107.2 GHz and a 6.8-GHz bandwidth, was demonstrated. The measured insertion loss of the complete structure (filter, feed sections, and flanges) was only 0.95 dB at center frequency, giving an unloaded quality factor of 152-clearly demonstrating the potential of this low-cost manufacturing technology, offering the advantages of lightweight rapid prototyping/manufacturing and relatively very low cost when compared with traditional (micro)machining.

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Section: Measured S-parameter Resultssupporting

confidence: 63%

mentioning

confidence: 99%

mentioning

confidence: 99%

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3-D Printed Metal-Pipe Rectangular Waveguides

D'Auria

Otter

Hazell

et al. 2015

IEEE Trans. Compon., Packag. Manufact. Technol.

262

135

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“…Metallic RWG channels are traditionally machined by either computerized numerically controlled (CNC) milling or electronic discharge machining (EDM) with spark erosion; however these technologies are relatively expensive solutions. Alternatively, injection molding followed by metallic plating processes was employed to form the RWG channels with acceptable return and attenuation loss. Recently, commercial 3D printing technology, which is based on layer by layer deposition produces excellent quality, light weight, and inexpensive RWG components .…”

Section: Introductionmentioning

confidence: 99%

3D printed RWG with slot-transition for low cost millimeter-wave applications: Simulation and measurement

Abdel‐Wahab

Ehsandar

Al‐Saedi

et al. 2017

Microw. Opt. Technol. Lett.

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In this article, the potential of building an air‐filled E‐plane metallic rectangular waveguide (RWG) with slot transition fabricated by 3D printing technology is explored for millimeter‐wave applications. It is low cost, light weight, and neither plating nor assembly is required compared to the traditional machined metallic RWG. A printed metallic RWG back‐to‐back transition is designed, fabricated, and tested over the frequency band 27–31 GHz. The measured results are compared to those of the machined metallic RWG. Good agreements between the measured results as well as the simulated results are observed.

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“…A plastic flange adaptor is designed to connect the waveguide to the spectrum analyzer. It is separately fabricated using the same hot embossing process and is fitted at the waveguide end [13]. Super glue (Loctite quicktite) is used to fix the flange adaptor with the waveguide-fed antenna.…”

Section: Introductionmentioning

confidence: 99%

Micromachined 95 GHz waveguide-fed plastic horn antennas

Sammoura¹,

Fuh²,

Lin³

2008

J. Micromech. Microeng.

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Waveguide-fed plastic horn antennas have been demonstrated for W-band applications using a versatile and cost-effective micro hot embossing process. The three-dimensional (3D) polymer structure with internally coated conductor is composed of a pyramidal horn, an E-plane waveguide bend, two resonant cavities for impedance matching and a connecting rectangular waveguide. Measurement results show broadband characteristics in W-band with a return loss of better than-10 dB; the bandwidth is 25.2 GHz between 76.5 and 101.7 GHz (26.5%), and the 3 dB beam widths of the E-and H-plane gain patterns at 95 GHz are 26 • and 23 • , respectively. The antenna gain is 17.04 dB at 95 GHz and the cross-polarization discriminations for E-and H-plane are 19.5 dB and 22.2 dB, respectively.

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Plastic 95-GHz rectangular waveguides by micro molding technologies

Cited by 24 publications

References 6 publications

3-D Printed Metal-Pipe Rectangular Waveguides

3-D Printed Metal-Pipe Rectangular Waveguides

3D printed RWG with slot-transition for low cost millimeter-wave applications: Simulation and measurement

Micromachined 95 GHz waveguide-fed plastic horn antennas

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