Cdsenet TX2400-JKD-20 2.4GHz WiFi Antenna 5.0dBi SMA-J TPEE 200mm Rubber Antenna for IoT Module

5.0 dBi High-Gain TPEE Rubber Radome — 200mm Bendable Design

The TX2400-JKD-20 achieves 5.0 dBi gain through a 200mm radiator that operates as a 5/8-wave equivalent at 2.4GHz, compressing the radiation pattern toward the horizon for increased gain compared to standard quarter-wave (2.15 dBi) or half-wave (2.5 dBi) antennas. The TPEE (Thermoplastic Polyester Elastomer) radome allows the antenna to be bent to various angles for flexible orientation in installations where a fixed vertical position is not optimal. TPEE maintains its mechanical properties across -40°C to +85°C and resists cracking under repeated flexing.

SMA-J Direct-Mount Connector — 50W Rated for Routers and APs

The precision SMA-J (male, inner pin and thread) connector provides a direct 50Ω interface to SMA-K female ports on WiFi routers, access points, smart home gateways, and 2.4GHz wireless modules. Rated for 50W maximum input power, the TX2400-JKD-20 accommodates the full output power range of consumer and industrial WiFi equipment. The connector is rated for repeated mating cycles, supporting field-replaceable antenna installations on routers and APs.

Measured with a vector network analyzer (Agilent E5071C equivalent): VSWR = 1.36 @ 2.45 GHz, confirming ≤1.5 across the full 2.4–2.5 GHz operating band. Return loss ≈ 16 dB at the measured frequency point.

Q: Is the TX2400-JKD-20 compatible with all 2.4GHz WiFi routers and modules?

A: The TX2400-JKD-20 is compatible with any 2.4GHz device featuring an SMA-K (female) port, including WiFi routers, access points, smart home gateways, and wireless modules. Confirm your device has an SMA-K (female) port before ordering. SMA and RP-SMA connectors are not interchangeable — RP-SMA reverses the pin/socket arrangement and is commonly found on consumer WiFi routers. Check your router's antenna port type before purchasing.

Q: How does 5.0 dBi gain compare to standard router antennas?

A: Most consumer WiFi router stock antennas are rated at 2.0–3.0 dBi. The TX2400-JKD-20's 5.0 dBi gain provides approximately 2–3 dB more gain, which translates to roughly 58–100% more effective radiated power in the horizontal plane. This is achieved by compressing the radiation pattern toward the horizon (reducing energy radiated upward/downward), which is beneficial for single-floor deployments but less effective for multi-story coverage.

Q: Does bending the antenna affect its RF performance?

A: Yes. The VSWR specification of ≤1.5 is measured with the antenna in a straight vertical position. Bending the antenna alters the radiation pattern — a bent antenna no longer radiates in a purely omnidirectional pattern. For applications requiring consistent omnidirectional coverage, mount the antenna vertically. Use the bend capability for space-constrained installations or to redirect the radiation pattern toward a specific area.

Q: What factors affect WiFi communication distance with this antenna?

A: Key factors include: (1) physical barriers — concrete walls attenuate 2.4GHz signals by 10–15 dB per wall; (2) antenna orientation — the 5.0 dBi gain is concentrated in the horizontal plane, so vertical mounting maximizes horizontal coverage; (3) proximity to metal surfaces — metal objects within 50mm of the antenna can detune the radiator and increase VSWR; (4) interference from other 2.4GHz devices on the same channel.

Q: What is the operating temperature range and is the TPEE radome suitable for outdoor use?

A: The TX2400-JKD-20 is rated for -40°C to +85°C. The TPEE radome is weather-resistant and suitable for protected outdoor installations. For direct rain or high-humidity exposure, protect the SMA connector junction with self-amalgamating tape to prevent moisture ingress. The TPEE material provides better crack resistance than standard rubber compounds under repeated flexing and temperature cycling.