GD58-29 Equivalent & Substitute Parts Reference

Part Overview

The GD58-29 is a 5.8GHz parabolic grid RF antenna manufactured by TE Connectivity Laird, designed for WiMax and WLAN applications operating across the 5.725GHz to 5.85GHz frequency band. This component delivers 29dBi gain with N Type Female termination and bracket mounting configuration, supporting up to 100W maximum power. The product is currently classified as obsolete, necessitating identification of functionally equivalent alternatives for ongoing system support and new design implementations.

Substiute Parts

GD58-29

TE Connectivity LairdIn Stock: 1054GD58-29 Datasheet

Current PartRFQ

OMB.445.05F21

Taoglas LimitedIn Stock: 883OMB.445.05F21 Datasheet

SimilarRFQ

OMB.6912.03F21

Taoglas LimitedIn Stock: 1454OMB.6912.03F21 Datasheet

SimilarRFQ

OMB.915.B03F21

Taoglas LimitedIn Stock: 1198OMB.915.B03F21 Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution analysis for the GD58-29 is constrained by the following critical parameters: frequency band operation, antenna type classification, connector termination, mounting interface, and power handling capacity. The GD58-29 operates in the SHF band (5.8GHz center frequency, 5.725GHz to 5.85GHz range) as a parabolic grid antenna with 29dBi directional gain.

The three substitute parts listed (OMB.915.B03F21, OMB.6912.03F21, OMB.445.05F21) are classified as whip-type antennas operating in lower frequency bands (UHF and lower SHF ranges). These substitutes share the following common attributes with the main part:

• N Type Female connector termination
• Bracket mount configuration
• RoHS compliance status
• Moisture Sensitivity Level 1 (Unlimited)

However, these substitutes operate at fundamentally different frequency bands and employ different antenna topologies. Direct functional substitution is not supported by the provided parameters due to frequency band incompatibility and antenna type differences.

Parameter Comparison

Engineering Selection Recommendations

Selection of substitute components for the obsolete GD58-29 must be evaluated based on application-specific frequency band requirements and system architecture constraints.

OMB.915.B03F21 (915MHz Whip Antenna): This component is suitable only for applications requiring UHF band operation at 915MHz center frequency. It is not compatible with 5.8GHz WiMax or WLAN systems. Product status is Active with ROHS3 compliance. Maximum power rating is 50W, which is lower than the GD58-29 specification.

OMB.6912.03F21 (829MHz/2.2GHz Dual-Band Whip Antenna): This component operates across UHF bands and lower frequency ranges. It is not compatible with 5.8GHz applications. Product status is Active with ROHS3 compliance and IP65 ingress protection. Maximum power rating is 150W. VSWR specification is 3, indicating higher impedance mismatch than the GD58-29.

OMB.445.05F21 (4.7GHz Whip Antenna): This component operates at 4.7GHz center frequency with range 4.4GHz to 5GHz. While this represents the closest frequency proximity to the GD58-29 operating band, the antenna topology (whip vs. parabolic grid) and gain differential (7dBi vs. 29dBi) result in fundamentally different radiation characteristics. Product status is Active with ROHS3 compliance. Power rating and VSWR specifications match the GD58-29.

For 5.8GHz WiMax and WLAN applications, direct frequency-band equivalent alternatives must be sourced from manufacturers offering parabolic grid or similar high-gain antenna designs operating within the 5.725GHz to 5.85GHz specification window.

Frequently Asked Questions (FAQ)

Q: Can the OMB.445.05F21 substitute for the GD58-29 in a 5.8GHz WLAN system?

A: No. Although the OMB.445.05F21 operates at 4.7GHz with frequency range 4.4GHz to 5GHz, this does not encompass the 5.8GHz center frequency or the 5.725GHz to 5.85GHz operating range of the GD58-29. Frequency band incompatibility prevents functional substitution.

Q: What is the significance of the antenna type difference between the GD58-29 and the substitute parts?

A: The GD58-29 is a parabolic grid antenna providing 29dBi directional gain. The substitute parts are whip-type antennas with significantly lower gain values (3.5dBi to 7dBi). Antenna topology determines radiation pattern, directivity, and system performance characteristics. These are not interchangeable designs.

Q: Are all substitute parts RoHS compliant?

A: Yes. The GD58-29 is RoHS Compliant. All three substitute parts (OMB.915.B03F21, OMB.6912.03F21, OMB.445.05F21) are ROHS3 Compliant, meeting current regulatory requirements.

Q: Do the substitute parts share the same connector and mounting interface?

A: Yes. All substitute parts feature N Type Female termination and bracket mount configuration, matching the GD58-29 interface specifications. However, connector compatibility alone does not establish functional equivalence.

Q: What is the product status of the substitute parts?

A: All three substitute parts are classified as Active products, ensuring ongoing availability and manufacturer support. The GD58-29 is classified as Obsolete.

Q: Can the OMB.6912.03F21 be used in applications requiring higher power handling?

A: The OMB.6912.03F21 supports 150W maximum power, exceeding the GD58-29 specification of 100W. However, this part operates at 829MHz and 2.2GHz center frequencies, which are incompatible with 5.8GHz system requirements.