Design and Implementation Challenges in Ka/Ku Dual-Band SATCOM-On-The-Move Terminals for Military Applications

Ozbay, Cahit; Teter, William; He, Donya; Sherman, Matthew; Schneider, Garret; Benjamin, James

doi:10.1109/milcom.2006.302150

Cited by 7 publications

(3 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Meanwhile, phased array systems provide a feasible solution for continuous tracking of the satellite directions in a fast and accurate manner. Hence, low-profile and low-cost two-way Ka-band phased array systems have been the centre of attention in a number of research programs [1][2][3][4][5][6][7][8].…”

Section: Introductionmentioning

confidence: 99%

“…where k 0 is the wave number, and d is the antenna element spacing. Using (1), for a half-wavelength antenna element spacing, the beam pointing resolution of 3-, 4-, and 5-bit digital phase shifters will be 14.5 • , 7.2 • , and 3.5 • , respectively. Since the antenna pointing accuracy for emerging Ka-band satellite communication should be better than 0.2 • -0.3 • , the required number of bits is at least 9.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Effects of Resonance-Based Phase Shifters on Ka-Band Phased Array Antenna Performance for Satellite Communications

Mohajer¹,

Faraji-Dana²,

Safavi‐Naeini³

2014

PIER B

View full text Add to dashboard Cite

Phase shifters are the key components of phased array systems which provide a low-profile solution for Ka-band satellite communications. In the transmitting mode, it is crucial for the phased array antenna system to meet the standard radiation masks, and any imperfections of phase shifters can yield into radiation mask violation. In this paper, we present the analytical approach to model the non-linear phase-frequency characteristics of Resonance-Based phase shifters, which constitute one of the most widely used class of phase shifters for Ka-band satellite communications. Furthermore, it has been investigated how the phase-frequency response non-linearity affects the phased array radiation patterns, gain, and the beam pointing direction. The simulation results show that, depending on the phase shifter phase-frequency response profile, the radiation mask satisfaction is an important factor in determining the system bandwidth.

show abstract

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Effects of Resonance-Based Phase Shifters on Ka-Band Phased Array Antenna Performance for Satellite Communications

Mohajer¹,

Faraji-Dana²,

Safavi‐Naeini³

2014

PIER B

View full text Add to dashboard Cite

show abstract

“…SOTM can provide real-time battlefield information. It enables the commander to execute the command effectively, while the soldiers are far from the command post [1]. Except for the military applications, SOTM is also widely used in the security emergency communications and communication support for major events.…”

Section: Introductionmentioning

confidence: 99%

Attitude Estimation Based on the Spherical Simplex Transformation Modified Unscented Kalman Filter

Zhao

Jia

Wang

et al. 2014

Mathematical Problems in Engineering

View full text Add to dashboard Cite

An antenna attitude estimation algorithm is proposed to improve the antenna pointing accuracy for the satellite communication on-the-move. The extrapolated angular acceleration is adopted to improve the performance of the time response. The states of the system are modified according to the modification rules. The spherical simplex transformation unscented Kalman filter is used to improve the precision of the estimated attitude and decrease the calculation of the unscented Kalman filter. The experiment results show that the proposed algorithm can improve the instantaneity of the estimated attitude and the precision of the antenna pointing, which meets the requirement of the antenna pointing.

show abstract

Emerging Antenna Technologies for Space Applications

Safavi‐Naeini

Fakharzadeh

2012

Space Antenna Handbook

View full text Add to dashboard Cite

Design and Implementation Challenges in Ka/Ku Dual-Band SATCOM-On-The-Move Terminals for Military Applications

Cited by 7 publications

References 0 publications

Effects of Resonance-Based Phase Shifters on Ka-Band Phased Array Antenna Performance for Satellite Communications

Effects of Resonance-Based Phase Shifters on Ka-Band Phased Array Antenna Performance for Satellite Communications

Attitude Estimation Based on the Spherical Simplex Transformation Modified Unscented Kalman Filter

Emerging Antenna Technologies for Space Applications

Contact Info

Product

Resources

About