Broadband 2-11 GHz Log Periodic Antenna — JRE ANT-211

When a bench spans widely separated wireless bands, I reach for broad coverage before repeated antenna changes. The log-periodic ANT-211 supports that work in a compact, conformal-coated form, with connector hardware for either SMA gender.

• Continuous 2-11 GHz frequency range for broad wireless-band coverage
• -10 to -15 dB return loss from 2 to 11 GHz for a reasonable match
• 50 ohms characteristic impedance for standard RF test setups
• 1 Watt power rating for transmitting and receiving configurations
• SMA female termination with included M-M adapter for male or female connection
• 3.4 x 2.1" (85 x 55 mm) including the M-M SMA adapter
• Small log-periodic element protected by a conformal dielectric coating

The ANT-211 is $78.00 and is the broad-coverage option when one antenna must follow a test across many bands. Within a small enclosure, nearby walls, cables, and the DUT reshape its near field, so published free-space behavior is not the setup target. If the work stays in one narrow band and maximum coupling matters more than range, a tuned antenna is the better direction.