Double-Layer Full-Corporate-Feed Hollow-Waveguide Slot Array Antenna in the 60-GHz Band

Miura, Yoshio; Hirokawa, Jiro; Ando, Makoto; Shibuya, Yotsugi; Yoshida, Goro

doi:10.1109/tap.2011.2158784

Cited by 312 publications

(162 citation statements)

References 7 publications

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“…It is observed that the operating frequency of the three is shifted down by about 1 GHz from the prediction (solid lines). This frequency shift corresponds to the slot over-etching by about 27 μm, as is usual the case with slot fabrications at 60 GHz band [21], [22]. Regardless of the frequency shift, we confirm that Ant2, the design following the maximum gain coupling (15) has the best gain performance among these three prototypes; its peak is 0.8 dB and 3.2 dB higher than that of Ant1 -the no loss design coupling (4), and Ant3 -the maximum directivity coupling (16), respectively.…”

Section: Designs and Measurements Of 400 MM φ Rlsasmentioning

confidence: 79%

Design of mm-Wave RLSAs with Lossy Waveguides by Slot Coupling Control Techniques

Nguyen

Hirokawa

Ando

et al. 2015

IEICE Trans. Commun.

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SUMMARY This paper discusses how to design a Radial Line Slot Antenna (RLSA) whose waveguide is filled with high loss dielectric materials. We introduce a new design for the aperture slot coupling synthesis to restrain the dielectric losses and improve the antenna gain. Based on a newly defined slot coupling, a number of RLSAs with different sizes and loss factors are analyzed and their performances are predicted. Theoretical calculations suggest that the gain is sensitive to the material losses in the radial lines. The gain enhancement by using the new coupling formula is notable for larger antenna size and higher loss factor of the dielectric material. Three prototype RLSAs are designed and fabricated at 60 GHz following different slot coupling syntheses, and their measured performances consolidate our theory.

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Section: Designs and Measurements Of 400 MM φ Rlsasmentioning

confidence: 79%

Design of mm-Wave RLSAs with Lossy Waveguides by Slot Coupling Control Techniques

Nguyen

Hirokawa

Ando

et al. 2015

IEICE Trans. Commun.

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“…Slot array antennas fed by a laminated-waveguide [30] or a substrate-integratedwaveguide [31] were developed because of the simplicity of print-circuit-board fabrication techniques. A hollowwaveguide full-corporate-feed slot array antenna provides both high antenna efficiency and wide bandwidth [32]. Radial line slot antennas were discussed because of the simple and light-weight structure [33], [34].…”

Section: Survey Of Current Technologiesmentioning

confidence: 99%

Recent Technologies in Japan on Array Antennas for Wireless Systems

Hirokawa

Chen

Fujimoto

et al. 2017

IEICE Trans. Commun.

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SUMMARY Array antenna technology for wireless systems is highly integrated for demands such as multi-functionality and high-performance. This paper details recent technologies in Japan in design techniques based on computational electromagnetics, antenna hardware techniques in the millimeter-wave band, array signal processing to add adaptive functions, and measurement methods to support design techniques, for array antennas for future wireless systems. Prospects of these four technologies are also described. key words: array antenna, multiple antenna, computational electromagnetics, millimeter-wave, antenna measurement, signal processing

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“…High gain antenna connected to a diplexer are key passive components of such systems, and by integrating them significant reduction of the total size and cost of the system can be achieved. Metallic hollow waveguide slot array antennas [1] have better performance in terms of efficiency compared to dielectric based microstrip and substrate integrated waveguide (SIW) array antennas [2], especially in millimeter wave frequencies. However, in hollow waveguide slot array antennas, good electrical contact between the different metal blocks is needed, which is an expensive and complicated procedure.…”

Section: Introductionmentioning

confidence: 99%

Diplexer integration into a Ka-band high-gain gap waveguide corporate-fed slot array antenna

Sorkherizi

Zaman

Yang

et al. 2017

2017 IEEE International Symposium on Antennas and Propagation &Amp; USNC/URSI National Radio Science Meeting

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Abstract-A multilayer integrated diplexer-antenna array module for Ka-band high capacity point-to-point backhaul links is presented. The proposed module is composed of three unconnected metal layers with a simple mechanical assembly and no electrical contact requirements between the distinct layers based on gap waveguide technology. A 7 th order hybrid diplexersplitter with a novel architecture is successfully integrated into a ridge gap waveguide corporate distribution network of a 16 × 16 slot array antenna. The measured input reflection coefficients for both Tx/Rx channels are below -13 dB with measured total efficiency better than 60% in the designed passband. The measured isolation of gain between the two channels is more than 55 dB.

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Double-Layer Full-Corporate-Feed Hollow-Waveguide Slot Array Antenna in the 60-GHz Band

Cited by 312 publications

References 7 publications

Design of mm-Wave RLSAs with Lossy Waveguides by Slot Coupling Control Techniques

Design of mm-Wave RLSAs with Lossy Waveguides by Slot Coupling Control Techniques

Recent Technologies in Japan on Array Antennas for Wireless Systems

Diplexer integration into a Ka-band high-gain gap waveguide corporate-fed slot array antenna

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