Ressort hélicoïdal - Metal Wire Forms Custom https://www.metalwireforms.com/fr Ressort de compression, ressort de torsion, ressort de tension, crochet en métal, poignée en métal, clip en métal. Fri, 22 Jul 2022 09:34:14 +0000 fr-FR horaire 1 https://wordpress.org/?v=6.9.4 https://www.metalwireforms.com/wp-content/uploads/2021/09/cropped-LOGO-top-32x32.png Ressort hélicoïdal - Metal Wire Forms Custom https://www.metalwireforms.com/fr 32 32 Personnalisez toutes sortes de ressorts d'antenne hélicoïdale en cuivre https://www.metalwireforms.com/fr/produit/customize-all-kinds-of-copper-helical-coil-antenna-spring Mon, 15 Nov 2021 07:41:31 +0000 https://www.xsmetalforming.com/?post_type=product&p=1956 The function of the antenna spring is to radiate and receive radio waves: when transmitting, convert high-frequency current into electromagnetic waves; when receiving, convert electromagnetic waves into high-frequency current. It plays a very important role in radio communication.

Spring antennas can be divided into nickel-plated, gold-plated, and copper spring antennas according to their materials. Generally, there are 315/490/868/915MHz spring antennas according to the frequency. Selection skills: When choosing a spring antenna, according to the actual project requirements, its size, length, gain, impedance, material, frequency, standing wave ratio and other parameters can meet the requirements.

antenna spring
antenna spring

Feature

Compared with other antennas, spring antennas are relatively low in cost, small in size, easy to install, have good standing wave ratio performance, and have good anti-vibration and anti-aging capabilities. Therefore, spring antennas are more and more widely used.

Application

Spring antenna is a very common low-cost antenna, which is widely used in many electronic products. Whether it is lora and sub-1g frequency bands such as 433M, 470M, 915M, or mobile cellular network frequency bands such as NBIOT and GSM, spring antennas have been widely used.

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