Transverse electromagnetic horn antenna with resistively-loaded exterior surfaces

Patent · Fri Jan 01 00:00:00 EST 1999

OSTI ID:872551

Aurand, John F ^[1]

---

1. Edgewood, NM

An improved transverse electromagnetic (TEM) horn antenna comprises a resistive loading material on the exterior surfaces of the antenna plates. The resistive loading material attenuates or inhibits currents on the exterior surfaces of the TEM horn antenna. The exterior electromagnetic fields are of opposite polarity in comparison to the primary and desired interior electromagnetic field, thus inherently cause partial cancellation of the interior wave upon radiation or upon reception. Reducing the exterior fields increases the radiation efficiency of the antenna by reducing the cancellation of the primary interior field (supported by the interior surface currents). This increases the transmit gain and receive sensitivity of the TEM horn antenna, as well as improving the transient (time-domain) response.

• Research Organization: Sandia National Laboratories (SNL), Albuquerque, NM, and Livermore, CA (United States)
• DOE Contract Number: AC04-94AL85000
• Assignee: Sandia Corporation (Albuquerque, NM)
• Patent Number(s): US 5959591
• OSTI ID: 872551
• Country of Publication: United States
• Language: English

Related Subjects

transverse
electromagnetic
horn
antenna
resistively-loaded
exterior
surfaces
improved
comprises
resistive
loading
material
plates
attenuates
inhibits
currents
fields
opposite
polarity
comparison
primary
desired
interior
field
inherently
partial
cancellation
wave
radiation
reception
reducing
increases
efficiency
supported
surface
transmit
receive
sensitivity
improving
transient
time-domain
response
horn antenna
exterior surfaces
electromagnetic fields
opposite polarity
electromagnetic field
magnetic field
magnetic fields
interior surface
exterior surface
resistive load
resistive loading
desired interior
transverse electromagnetic
improved transverse
antenna comprises
/343/