Antennas

An Antenna is a specialised transducer designed to either capture radiated electromagnetic emissions from a device (for testing compliance) or to radiate a controlled field toward a device (to test its immunity to interference). Unlike standard communications antennas, they are engineered for extreme bandwidth and flat frequency response.

Why Choose an EMC Antenna?

Ultra-Wide Bandwidth: They are designed to cover massive frequency ranges (e.g., 30MHz to 3GHz) in a single sweep, eliminating the need to stop testing and swap antennas mid-measurement.

Calibrated Antenna Factors: Professional EMC antennas come with precise calibration data (Antenna Factors), allowing a spectrum analyser to convert "received voltage" into "field strength" (V/m) accurately.

High Power Handling: For immunity testing, these antennas are built with robust materials to handle high-wattage inputs from RF amplifiers without overheating or distorting the signal.

Minimal Self-Resonance: They are engineered to provide a clean, predictable response across their entire range, ensuring that any peaks or dips seen on the screen are from the device being tested, not the antenna itself.

Core Applications

Radiated Emissions Testing (Pre-compliance): Used to detect if a product is "leaking" excessive electromagnetic noise that could interfere with radios, TVs, or emergency services.

Radiated Immunity Testing: Used in conjunction with an RF amplifier to subject a product to intense electromagnetic fields (e.g., 10 V/m) to ensure it continues to function correctly in harsh environments.

Site Shielding Evaluation: Combined with a comb generator to measure the effectiveness of shielded rooms or "Faraday cages" by seeing how much signal can pass through the walls.

Wireless Coexistence Testing: Verifying how a new electronic device behaves when placed near known high-frequency sources like Wi-Fi routers, 5G towers, or industrial equipment.

SKU	Brand	Types	Frequency Range	CISPR	Antenna Factors	Input Power	Stock	Price
NKU07M32G	NoiseKen	Broadband Sleeve	700 MHz - 3.2 GHz	N/A	N/A	20 W	On Backorder	Call Us
NKU2460G	NoiseKen	Broadband Sleeve	2.4 GHz - 6 GHz	N/A	N/A	10 W	On Backorder	Call Us
NKU5080G	NoiseKen	Broadband Sleeve	5 GHz - 8 GHz	N/A	N/A	10 W	On Backorder	Call Us
TBMA5 - DEMO	Tekbox	Active Monopole	9 kHz - 30 MHz	Band B	6 dB/m	N/A	1	£145.00
TBLLA-2M	Tekbox	Triple Loop	9 kHz - 30 MHz	Band B	0 dBΩ	N/A	On Backorder	£4,370.00
TBMA1B	Tekbox	Biconical	30 MHz - 3 GHz	Band C, Band D	+17…+51dB/m	2W	5	£572.00
TBMA1C	Tekbox	Biconical	20 MHz - 1 GHz	Band C, Band D	+14…+40dB/m	2W	On Backorder	£671.00
TBMA2	Tekbox	Biconical	30 MHz - 300 MHz	Band C	+11…+26dB/m	100W	2	£933.00
TBMA3	Tekbox	Logarithmic-periodic	250 MHz - 1.3 GHz	Band D	+14…+27dB/m	100W	2	£1,167.00
TBMA4	Tekbox	Horn	1 GHz - 8 GHz	Band E	+24…+43dB/m	100W	3	£643.00
TBMA5	Tekbox	Active Monopole	9 kHz - 30 MHz	Band B	6 dB/m	N/A	On Backorder	£1,651.00
TBMA6-P	Tekbox	Loop	9 kHz - 30 MHz	Band B	-20dB/Ωm @ 30 MHz	N/A	1	£932.00
TBMA7	Tekbox	Logarithmic-periodic	150 MHz - 3 GHz	Band D, Band E	+10…+34dB/m	130W	1	£1,193.00
TBMA8	Tekbox	Hybrid	30 MHz - 3 GHz	Band C, Band D, Band E	+8…+34dB/m	130W	1	£2,138.00
TBRE101	Tekbox	Receiving loop antenna	30 Hz – 100 kHz	N/A	Application: RE101, Application: Radiated Emissions	N/A	On Backorder	£646.00
TBRS101	Tekbox	Receiving loop antenna	30 Hz – 100 kHz	N/A	Application: RE101, Application: Calibration of TBRS101-TX	N/A	On Backorder	£1,407.00

Showing 1–16 of 18 results

NoiseKen NKU07M32G Broadband Sleeve Antenna 700 MHz 〜 3.2 GHz
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Available on back-order

Availability: Stock models delivered next working day (UK only) for orders placed before 16:30 (Mon - Fri)
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NoiseKen NKU2460G Broadband Sleeve Antenna 2.4 GHz 〜 6 GHz
.
Available on back-order

Availability: Stock models delivered next working day (UK only) for orders placed before 16:30 (Mon - Fri)
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NoiseKen NKU5080G Broadband Sleeve Antenna 5 GHz 〜 8 GHz
.
Available on back-order

Availability: Stock models delivered next working day (UK only) for orders placed before 16:30 (Mon - Fri)
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Rental Tekbox TBMA1 Biconical Antenna 30MHz – 1GHz
£128.00 (£153.60 inc. VAT)
1 in stock (can be backordered)

Availability: Stock models delivered next working day (UK only) for orders placed before 16:30 (Mon - Fri)
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Rental: Tekbox TBMA5 Active Monopole Antenna 9kHz – 30MHz
£145.00 (£174.00 inc. VAT)
1 in stock (can be backordered)

Availability: Stock models delivered next working day (UK only) for orders placed before 16:30 (Mon - Fri)
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Rental
Rental: Tekbox TBMA8 30 MHz – 3000 MHz Hybrid Measurement Antenna
£200.00 (£240.00 inc. VAT)
Available on back-order

Availability: Stock models delivered next working day (UK only) for orders placed before 16:30 (Mon - Fri)
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Tekbox TBLLA-2M 9 KHz – 30 MHz Large Loop Antenna
£4,370.00 (£5,244.00 inc. VAT)
Available on back-order

Availability: Stock models delivered next working day (UK only) for orders placed before 16:30 (Mon - Fri)
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Tekbox TBMA1B Biconical Antenna 30MHz – 3GHz
£572.00 (£686.40 inc. VAT)
5 in stock (can be backordered)

Availability: Stock models delivered next working day (UK only) for orders placed before 16:30 (Mon - Fri)
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Tekbox TBMA1C Biconical Antenna 20 MHz – 700 MHz
£671.00 (£805.20 inc. VAT)
Available on back-order

Availability: Stock models delivered next working day (UK only) for orders placed before 16:30 (Mon - Fri)
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Tekbox TBMA2 Biconical Antenna 30MHz to 300MHz
£933.00 (£1,119.60 inc. VAT)
2 in stock (can be backordered)

Availability: Stock models delivered next working day (UK only) for orders placed before 16:30 (Mon - Fri)
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Tekbox TBMA3 250MHz to 1.3GHz LOG Periodic Measurement Antenna
£1,167.00 (£1,400.40 inc. VAT)
2 in stock (can be backordered)

Availability: Stock models delivered next working day (UK only) for orders placed before 16:30 (Mon - Fri)
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Tekbox TBMA4 CISPR16 1GHz to 8GHz Double Ridged Horn Antenna
£643.00 (£771.60 inc. VAT)
3 in stock (can be backordered)

Availability: Stock models delivered next working day (UK only) for orders placed before 16:30 (Mon - Fri)
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Tekbox TBMA5 Active Monopole Antenna 9kHz – 30MHz
£1,651.00 (£1,981.20 inc. VAT)
Available on back-order

Availability: Stock models delivered next working day (UK only) for orders placed before 16:30 (Mon - Fri)
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Tekbox TBMA6-P CISPR 16 Passive Loop Antenna 9 kHz – 30 MHz
£932.00 (£1,118.40 inc. VAT)
1 in stock (can be backordered)

Availability: Stock models delivered next working day (UK only) for orders placed before 16:30 (Mon - Fri)
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Tekbox TBMA7 150 MHz – 3000 MHz Log Periodic Measurement Antenna
£1,193.00 (£1,431.60 inc. VAT)
1 in stock (can be backordered)

Availability: Stock models delivered next working day (UK only) for orders placed before 16:30 (Mon - Fri)
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Tekbox TBMA8 30 MHz – 3000 MHz Hybrid Measurement Antenna
£2,138.00 (£2,565.60 inc. VAT)
1 in stock (can be backordered)

Availability: Stock models delivered next working day (UK only) for orders placed before 16:30 (Mon - Fri)
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