Antenova B4844 RF Antenna 2.4GHz Equivalent & Substitute Parts

Part Overview

The Antenova B4844 is a 2.4GHz Blade RF Antenna designed for Bluetooth, WiMedia™, WLAN, and Zigbee™ applications. This component operates in the 2.4GHz to 2.5GHz frequency band with a 2.2dBi gain and SMA Male panel mount termination. The product is currently obsolete, making equivalent and substitute parts necessary for ongoing system support and new designs requiring similar RF performance characteristics.

Substiute Parts

B4844

AntenovaIn Stock: 912B4844 Datasheet

Current PartRFQ

A.01.C.301111

Taoglas LimitedIn Stock: 1661A.01.C.301111 Datasheet

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A.40.A.301111

Taoglas LimitedIn Stock: 1312A.40.A.301111 Datasheet

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S152AH-2450S

Nearson Inc.In Stock: 697S152AH-2450S Datasheet

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WS.02.B.205111

Taoglas LimitedIn Stock: 837WS.02.B.205111 Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution for the B4844 is determined by the following critical parameters:

Primary Substitution Criteria:

• Frequency Range: 2.4GHz ~ 2.5GHz (mandatory match)
• Termination: SMA Male connector (mandatory match)
• Mounting Type: Panel Mount (mandatory match)
• RF Standards: 802.15.4, Bluetooth, WiFi compatibility (mandatory match)

Secondary Compatibility Parameters:

• Antenna Type: Blade or Dome configurations acceptable within frequency band
• Gain: Range of 2.2dBi to 4.42dBi acceptable for 2.4GHz ISM band applications
• VSWR: Values between 1.38 and 2.0 acceptable for impedance matching
• Return Loss: Values between -13dB and -15.86dB acceptable for signal reflection performance

The substitute parts listed below meet all primary criteria and operate within acceptable secondary parameter ranges for direct substitution in 2.4GHz ISM band applications.

Parameter Comparison

Engineering Selection Recommendations

WS.02.B.205111 (Taoglas Limited) is the primary substitute for the B4844. This part maintains identical frequency range, SMA Male termination, and panel mount configuration. The Taoglas part is currently active in production with ROHS3 compliance and REACH unaffected status. The dome antenna type provides superior VSWR (1.38 vs 1.6) and return loss (-15.86dB vs -13dB) performance. Gain is higher at 4.42dBi compared to 2.2dBi, which may require system-level RF link budget verification. The integrated 2m cable and IP67/IP69K ingress protection offer enhanced environmental durability.

S152AH-2450S (Nearson Inc.) is an alternative substitute for applications where connector mount flexibility is acceptable. This whip/tilt antenna maintains the 2.4GHz ~ 2.5GHz frequency range and provides 4dBi gain. The RP-SMA Male termination differs from the B4844 SMA Male connector, requiring mechanical adapter consideration. The connector mount configuration differs from panel mount, necessitating mechanical redesign. This part is RoHS compliant and currently active.

A.01.C.301111 and A.40.A.301111 (Taoglas Limited) are not suitable substitutes. These parts operate in the 1.575GHz and 1.6GHz frequency bands respectively, outside the required 2.4GHz ~ 2.5GHz range. They are designed for GPS and GLONASS navigation applications, not ISM band Bluetooth/WiFi/Zigbee applications.

Frequently Asked Questions (FAQ)

Q: Can the B4844 be directly replaced with the WS.02.B.205111?

A: Yes, for applications requiring 2.4GHz ISM band operation with SMA Male panel mount termination. Both parts operate across the identical 2.4GHz ~ 2.5GHz frequency range and support 802.15.4, Bluetooth, and WiFi standards. The WS.02.B.205111 offers improved impedance matching (VSWR 1.38 vs 1.6) and return loss performance (-15.86dB vs -13dB). The higher gain (4.42dBi vs 2.2dBi) requires RF link budget verification in your specific application.

Q: What is the difference between SMA Male and RP-SMA Male terminations?

A: SMA Male and RP-SMA Male are mechanically incompatible connectors. SMA Male has a center pin; RP-SMA Male (Reverse Polarity SMA) has a center socket. Direct connection requires a mechanical adapter. The S152AH-2450S uses RP-SMA Male, while the B4844 uses SMA Male. Verify your system's connector type before selecting this substitute.

Q: Why is the S152AH-2450S listed as a substitute if it uses RP-SMA Male?

A: The S152AH-2450S meets the primary frequency range and RF standard criteria for 2.4GHz ISM band applications. However, the RP-SMA Male termination and connector mount configuration require mechanical adaptation. This part is suitable only for designs where connector type and mounting method can be modified.

Q: Are the Taoglas GPS antenna parts (A.01.C.301111 and A.40.A.301111) compatible with the B4844?

A: No. These parts operate at 1.575GHz and 1.6GHz respectively, outside the required 2.4GHz ~ 2.5GHz frequency band. They are designed for GPS and GLONASS navigation, not Bluetooth, WiFi, or Zigbee applications. Frequency incompatibility makes these parts unsuitable for B4844 substitution.

Q: What packaging options are available for substitute parts?

A: WS.02.B.205111 is supplied in Bag packaging. S152AH-2450S is supplied in Bulk packaging. Verify packaging requirements for your procurement and assembly processes.

Q: Are all substitute parts RoHS and REACH compliant?

A: WS.02.B.205111 is ROHS3 compliant and REACH unaffected. S152AH-2450S is RoHS compliant. Verify compliance requirements for your specific application and regional regulations.