An analysis of MMW wireless LANs for LPI/AJ command post communications

Harvey, Bruce A.; Howard, D.; Barnhart, E.N.; Loso, F.G.; Staba, J.

doi:10.1109/milcom.1993.408602

Cited by 8 publications

(3 citation statements)

References 3 publications

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“…One of the major difficulties for realizing these systems is the transmission/reception quality, where the wirelessly transmitted data can be affected by multipath, improper line‐of‐sight between the transmitting and the receiving antennas and some phasing issues due to snow and rain. In addition, MMW communications at frequencies around 35 GHz suffer from high propagation losses due to absorption by oxygen molecules in the atmosphere . Therefore, a circularly polarized antenna with a directive main beam is required to assure better transmission/reception quality and high S/N ratio.…”

Section: Introductionmentioning

confidence: 99%

High gain circularly polarized slot‐coupled antenna for millimeter wave applications

Elboushi

Haraz

Sebak

2014

Micro & Optical Tech Letters

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A high gain circularly polarized millimeter-wave x-slot antenna with surface mounted horn is presented. Substrate integrated waveguide technology is adopted to achieve low profile feeding structure to excite the x-shaped slot backed by a circular cavity. As a gain enhancing technique, a surface mounted horn, made from a very thin copper sheet is placed over the x-slot to achieve a realized gain more than 15 dB. The proposed design exhibits an experimental bandwidth of 1.05 GHz. A very good agreement between the experimental and the simulated results is achieved.

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Section: Introductionmentioning

confidence: 99%

High gain circularly polarized slot‐coupled antenna for millimeter wave applications

Elboushi

Haraz

Sebak

2014

Micro & Optical Tech Letters

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“…Millimeter-Wave (MMW) technology is considered as a new emerging technology for the next generation of the wireless networks and for short distance data transfer between the electronic devices. However, MMW communications at frequencies around 60 GHz suffer from high propagation losses due to absorption by oxygen molecules in the atmosphere [1], so high gain is considered as one of the most important issue in antenna design for such frequencies. Also, a circular polarized (CP) antenna is required to assure high quality transmission or reception in order to overcome multi-path, improper line-of-Sight (LOS) between the transmitter and the receiver and some phasing issues due to rain or snow in the air.…”

Section: Introductionmentioning

confidence: 99%

Numerical Investigations of Novel High-Gain Circularly-Polarized Hybrid Antenna for Millimeter-Wave Detection and Imaging Applications

Haraz

2013

JES. Journal of Engineering Sciences

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A new improved high gain circularly-polarized antenna for millimeter-wave (MMW) applications is introduced in this paper. The proposed antenna consists of a microstrip rectangular patch radiator with corner-chopped fed by a rectangular aperture in the ground plane. To increase the antenna gain, a hollow rectangular ring dielectric resonator (DR) is installed. The DR and microstrip patch radiator together become as a single antenna element with increased gain. Extensive parametric studies are performed to address the effect of varying the antenna parameters on the operational frequency bandwidth. For further gain enhancement, a hemi-spherical dielectric lens made of highdielectric constant is installed above the proposed antenna. Simulated results using Computer System Technology Microwave Studio (CST MWS) software programs based on finite integral numerical modeling technique (FIT) have been presented. The proposed novel antenna is considered a good candidate for circularly-polarized and high gain MMW applications for microwave detection and imaging applications.

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“…It allows high data transfer rates "expected to be between 40-400 faster than 802.11n wireless networks". However, Millimeterwave communications at frequencies around 60 GHz suffer from high propagation losses due to absorption by oxygen molecules in the atmosphere [1]. Accordingly, improving the gain is considered as one of the most important targets in antenna design for such frequencies.…”

Section: Introductionmentioning

confidence: 99%