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Co-Site Interference Mitigation in Phased Arrays

Award Information

Department of Defense
Award ID:
Program Year/Program:
2010 / SBIR
Agency Tracking Number:
Solicitation Year:
Solicitation Topic Code:
NAVY 10-104
Solicitation Number:
Small Business Information
Toyon Research Corporation
CA Goleta, CA 93117-3021
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Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No
Phase 1
Fiscal Year: 2010
Title: Co-Site Interference Mitigation in Phased Arrays
Agency / Branch: DOD / NAVY
Contract: N66001-10-M-5112
Award Amount: $70,000.00


The available space for antennas within a submarine sail is extremely limited. To achieve the desired multi-frequency capability for future submarine communications systems, phased array apertures will need to be collocated within a single housing. The resulting close proximity of transmit and receive antennas and the requirement for full duplex communication lead to a challenging electromagnetic interference (EMI) problem. The EMI is especially severe at X-band frequencies where the X-band transmit array and the X-K-band receive array both operate simultaneously. Fortunately, there is some room to physically separate the X-band transmit array from the X-K-band receive array. A choke structure and/or patterned absorber inserted into the space between these two arrays can reduce the X-band EMI while passing through signals from the higher frequency transmit arrays (Ka-band and Q-band) that share the same space. Toyon has extensive experience designing chokes and patterned absorbers tailored to mitigate EMI with a minimal thickness and weight. Toyon proposes to use this experience to investigate the use of an X-band choke/absorber structure that is transparent to signals in the Ka-Q bands.

Principal Investigator:

Michael Gilbert
Senior Staff Analyst

Business Contact:

Marcella Lindbery
Director of Finance
Small Business Information at Submission:

Toyon Research Corp.
6800 Cortona Drive Goleta, CA 93117

EIN/Tax ID: 953526665
Number of Employees:
Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No