What is the main function of fixed attenuator

(1) Adjust the size of the signal in the circuit; (2) In the comparison measurement circuit, the attenuation value of the network under test can be read directly; (3) If some circuits require a relatively stable load impedance, an attenuator can be inserted between the circuit and the actual load impedance to buffer the change of impedance.

All of HBTE fixed attenuators are tested and specified at 50Ω impedance, can I use them at 75Ω?

It is not recommended. If you need key specifications for the 75 Ω system, please contact our salesman. Our engineers will redesign the internal components for you to meet specific requirements.

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Coaxial Load

The coaxial terminal load as the energy absorption element in the system is used for the end connection of coaxial transmission system and is generally used for the system test of RF signal transmission. It has the characteristic impedance matching with the transmission line.

Coaxial load can improve the matching performance of the circuit, which is usually connected to the terminal of the circuit. It can also be called a terminal load or a matching load. There might have been unconnected coaxial ports in many application environments, such as radio equipment, electronic instruments, and various microwave devices. The idle port will lead to signal leakage, make the signal from the nearby equipment enter, and cause crosstalk to the line. In order to avoid this kind of problem, the general solution is to connect a coaxial load that can match the impedance between the spare channel and the test port. It can not only ensure the signal impedance matching but also significantly reduce the signal leakage of the vacant port and the mutual interference between the systems.

Types of Coaxial Load

5W Coaxial Load

50W Coaxial Load

200W Coaxial Load

NO	Product number	Average power (W)	Frequency range (GHz)	Maximum standing wave ratio	Connector form
1	HBTE-CT002-6-SM-9	2	DC~6	≤1.15	SMA-male
2	HBTE-CT002-12.4-SM-9	2	DC~12.4	≤1.20	SMA-male
3	HBTE-CT002-18-SM-9	2	DC~18	≤1.25	SMA-male
4	HBTE-CT002-6-NM-20	2	DC~6	≤1.20	N-male
5	HBTE-CT002-12.4-NM-18	2	DC~12.4	≤1.25	N-male
6	HBTE-CT002-18-NM-18	2	DC~18	≤1.35	N-male
7	HBTE-CT005-6-SM-17	5	DC~6	≤1.15	SMA-male
8	HBTE-CT005-12.4-SM-17	5	DC~12.4	≤1.20	SMA-male
9	HBTE-CT005-18-SM-17	5	DC~18	≤1.25	SMA-male
10	HBTE-CT005-6-NM-20	5	DC~6	≤1.20	N-male
11	HBTE-CT005-12.4-NM-18	5	DC~12.4	≤1.25	N-male
12	HBTE-CT005-18-NM-18	5	DC~18	≤1.35	N-male
13	HBTE-CT010-6-SM-12	10	DC~6	≤1.20	SMA-male
14	HBTE-CT010-6-SM-15	10	DC~6	≤1.20	SMA-male
15	HBTE-CT010-12.4-SM-15	10	DC~12.4	≤1.25	SMA-male
16	HBTE-CT010-18-SM-15	10	DC~18	≤1.35	SMA-male
17	HBTE-CT010-6-SM-17	10	DC~6	≤1.20	SMA-male
18	HBTE-CT010-12.4-SM-17	10	DC~12.4	≤1.25	SMA-male
19	HBTE-CT010-18-SM-17	10	DC~18	≤1.35	SMA-male
20	HBTE-CT010-6-NM-32	10	DC~6	≤1.20	N-male
21	HBTE-CT010-12.4-NM-32	10	DC~12.4	≤1.35	N-male
22	HBTE-CT010-18-NM-32	10	DC~18	≤1.45	N-male
23	HBTE-CT010-6-SM-32	10	DC~6	≤1.20	SMA-male
24	HBTE-CT010-12.4-SM-32	10	DC~12.4	≤1.35	SMA-male
25	HBTE-CT010-18-SM-32	10	DC~18	≤1.45	SMA-male
26	HBTE-CT020-6-SM-15	20	DC~6	≤1.20	SMA-male
27	HBTE-CT020-12.4-SM-15	20	DC~12.4	≤1.30	SMA-male
28	HBTE-CT020-18-SM-15	20	DC~18	≤1.35	SMA-male
29	HBTE-CT020-6-NM-38.8	20	DC~6	≤1.20	N-male
30	HBTE-CT020-12.4-NM-38.8	20	DC~12.4	≤1.30	N-male
31	HBTE-CT020-18-NM-38.8	20	DC~18	≤1.45	N-male
32	HBTE-CT030-6-NM-38.8	30	DC~6	≤1.20	N-male
33	HBTE-CT030-12.4-NM-38.8	30	DC~12.4	≤1.30	N-male
34	HBTE-CT030-18-NM-38.8	30	DC~18	≤1.45	N-male
35	HBTE-CT050-6-NM-38.8	50	DC~6	≤1.2	N-male
36	HBTE-CT050-8-NM-38.8	50	DC~8	≤1.25	N-male
37	HBTE-CT050-6-SM-55	50	DC~6	≤1.20	SMA-male
38	HBTE-CT050-12.4-SM-55	50	DC~12.4	≤1.30	SMA-male
39	HBTE-CT050-18-SM-55	50	DC~18	≤1.45	SMA-male
40	HBTE-CT100-6-NM-55	100	DC~6	≤1.20	N-male
41	HBTE-CT100-8-NM-55	100	DC~8	≤1.30	N-male
42	HBTE-CT150-6-NM-55	150	DC~6	≤1.25	N-male
43	HBTE-CT150-8-NM-55	150	DC~8	≤1.35	N-male
44	HBTE-CT150-4-NM-75*60	150	DC~4	≤1.30	N-male
45	HBTE-CT200-6-NM-55	200	DC~6	≤1.30	N-male
46	HBTE-CT200-8-NM-55	200	DC~8	≤1.35	N-male
47	HBTE-CT200-4-NM-75*60	200	DC~4	≤1.35	N-male
48	HBTE-CT250-4-NM-100*60	250	DC~4	≤1.40	N-male
49	HBTE-CT300-4-NM-100*60	300	DC~4	≤1.40	N-male
50	HBTE-CT350-4-NM-100*80	350	DC~4	≤1.40	N-male
51	HBTE-CA400-4-NM-100*80	400	DC~4	≤1.40	N-male
52	HBTE-CT450-4-NM-100*80	450	DC~4	≤1.50	N-male
53	HBTE-CT500-4-NM-100*80	500	DC~4	≤1.50	N-male

FAQs of HBTE Coaxial Load

What is the function of impedance matching?

Impedance matching refers to a suitable match between signal source or transmission line and load. Impedance matching has two main functions: adjusting load power and suppressing signal reflection.

If I exceed the maximum input level, will I burn out the fixed attenuator?

This is not recommended as it may cause data distortion or burn down coaxial load.

All of HBTE coaxial load are tested and specified at 50Ω impedance, can I use them at 75Ω?

It is not recommended.If you need key specifications for the 75 Ω system, please contact our salesman.

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