Easy to understand! After reading it you are half an antenna expert https://www.whwireless.com/ Estimated 20minutes to finish reading As we all know, antennas are used by base stations and cell phones to transmit signals. The word antenna in English is Antenna, which originally means tentacles. Tentacles are the two long thin wires on top of an insect's head. Don't underestimate such an inconspicuous thing, but it is the chemical signals sent by these tentacles that convey various social information. Similarly, in the human world, wireless communication also uses antennas to transmit information, but it is electromagnetic waves that carry useful information. The picture below is an example of a cell phone and a base station communicating with each other. If you raise your head to scrutinize the base station, you will find that at the top of the tower, there are some plate-like things, which is the protagonist of this article: communication antenna, the most often and cell phone direct eye contact is this goods. This antenna is called a directional antenna, as the name suggests, is that the signal emission is directed. If it is facing you, the signal just; if you stand behind it, then sorry, not in the service area! At present, the vast majority of base stations on the use of directional antennas, generally need three antennas to complete 360-degree coverage. To unveil the mysterious veil of this goods, it is necessary to dismantle it to see what is actually loaded inside. The internal empty, the structure is not complex well, is composed of vibrators, reflector plate, feed network and radome. These internal structures are doing what, how to realize the function of directional transmission and reception of signals? This is all from the electromagnetic wave to start. Peeling back the antenna's coat Antennas are capable of transmitting information at high speeds because they emit electromagnetic waves containing information into the air, traveling at the speed of light and eventually reaching the receiving antenna. It's like transporting passengers on a high-speed train. If you compare information to passengers, then the vehicle that carries the passengers: the high-speed train is the electromagnetic wave, and the antenna is the equivalent of the station, which manages the dispatching of the electromagnetic wave. So, what are electromagnetic waves? Scientists have studied the two mysterious forces of electricity and magnetism for hundreds of years, culminating in Maxwell of England's proposal that an electric current can produce an electric field in its vicinity, a changing electric field produces a magnetic field, and a changing magnetic field produces an electric field. Eventually this theory was confirmed by Hertz's experiments. With the electromagnetic field in such a periodic transformation, electromagnetic waves radiate and propagate into space. For more details, see the article, "Electromagnetic Waves Cannot Be Seen or Touched, This Young Man...

Wireless Broadband Communication Solutions for Multiple Life Scenarios https://www.whwireless.com/ Estimated 10minutes to finish reading Today, wireless connectivity is used in all aspects of life. Reliable and fast internet connectivity is vital for all types of businesses and consumers, and nowadays, this is not always achieved through the traditional fixed line approach. There is an option to use 4G/5G wireless connectivity to enable internet connectivity while providing failover/recovery capabilities, which requires routing equipment and effective MiMo antennas. The HK-WMM series antennas are easy-to-install, high-performance antennas with adaptable and pre-assembled connectors for "plug-and-play" connectivity. Stable Connectivity Downtime due to Internet failures can often be risky and costly, and wireless antenna solutions for failover can greatly reduce this risk. Poor broadband speeds in rural areas Poor or no ADSL connectivity in remote/rural areas can have a significant impact on business operations and community life in these areas. 4G/5G wireless services can provide a reliable solution for fast broadband connectivity. 5G Full Deployment With large-scale 5G deployments now underway globally, there is a need to ensure that you have a 5G-capable solution. Wireless self-service devices More and more business locations are automating transactions, such as ticket vending machines, vending machines, etc. This means that wireless connectivity is critical at all times, and the stability of this connectivity can be ensured through wireless antenna solutions. Quick and easy installation Compact combo antenna design with integrated low-loss cables provides an ideal solution for installation in a variety of locations. Designed to provide MiMo dual-band directional coverage antennas for dedicated 5G/LTE networks, the rugged, thin housing contains up to four antenna components with excellent isolation. The weatherproof enclosure is designed for rail or mast mounting and can be fitted with a range of extension cables for specific applications and needs. Features High gain directional antenna Compact solution Up to 4x4 MiMo Dual band 3.5/5GHz 9dBi gain Suitable for mast/rail mounting High gain 4x4 MiMo signal boosting antenna for 4G and 5G networks. It integrates four independently fed broadband components in a single housing to provide MiMo support for 4G and 5G networks, providing 6dBi peak gain in the 617-960MHz band and 9dBi peak gain in the 1710-6000MHz band. Features High gain directional antenna Wall or mast mounted 600-6000MHz wideband 6-9dBi peak gain Supports LTE CAT18/20 routers Ideal for branch networks or failover High gain directional 2x2 MiMo signal booster antenna for 4G/5G LTE, integrates two independently fed broadband components in a single housing to provide MiMo and diversity support for 4G/5G LTE, ruggedized, weatherproof housing designed for wall mounting, wall and mast mounting brackets also available. Features 2x2 MiMo broadb...

How to Secure Wireless Communication Links for Public Safety? https://www.whwireless.com Estimated 8 minute to finish reading As the weather gets hotter, firefighting becomes a more important part of public safety. Because most fire departments cover large geographic areas and have growing populations, fire departments are responsible for large areas, including sparsely populated areas that lack cellular service. In order to respond to firefighting emergencies in a timely manner, fire departments need to enhance the signal of their wireless devices to ensure that reliable wireless connectivity is always available at the station and at the scene of an incident. In addition, they wanted to add failover capabilities to their mobile data coverage to maintain wireless connectivity at all times and be able to keep service uninterrupted in the event of an outage or network failure. The Solution. The fire department installed two antennas on each fire truck with corresponding routers. Thanks to the antennas, which feature four ultra-wideband 5G LTE components, four WiFi 2.4/5.0GHz components and a high-performance GPS/GNSS antenna, HONGKEI provided them with the robust and reliable wireless connectivity they needed. Designed for the latest generation of LTE Cat 18/20 routers and devices, this rugged, low-profile antenna consists of up to 11 components, including four isolated high-performance antenna components covering 617-960/1710-6000MHz, up to six optional dual-band components covering 2.4 and 5.0/7.2GHz to support WiFi's MiMo/Split set operation, and an optional high-performance GPS/GNSS antenna with integrated 26dB gain LNA and high-quality filtering that delivers unmatched positioning accuracy. It can support the use of many terminals without the need for a metal grounding layer and maintains a high level of performance even when mounted on non-metallic surfaces. And is designed to be suitable for operation in the harshest conditions. By installing two antennas on each fire engine, the fire department has ensured that any location in the area can have flexible wireless communications and seamless connectivity. They have also fed back that surrounding areas where connectivity was once not possible no longer have any issues and speeds are even higher than before across the district, which has greatly improved the efficiency and safety of the whole firefighting process. https://www.whwireless.com

Millimeter wave shielding test solution to help 5G millimeter wave communication https://www.whwireless.com Estimated 8 minute to finish reading The development of 5G technology has been extremely rapid in recent years, and it features high speed, low latency and large connectivity. The current 5G solutions are divided into millimeter wave and Sub-6GHz, except for Sub-6GHz which is now developing at a rapid pace, the progress of millimeter wave is also changing day by day. Millimeter wave, as the name suggests, is an electromagnetic wave with a wavelength between 1-10mm, and now it is no longer just at the research level, but is rapidly entering the commercial level and gradually covering the living periphery. With the popularity of 5G cell phones, we will find that the Sub6 crowded channel environment can no longer meet the user demand for high data volume and high speed, so the major cell phone manufacturers are gradually looking at millimeter wave. It can be said that millimeter wave is the direction of the next generation of cell phones, so as to meet the general public in the streaming media era for the increasingly high data transmission rate requirements. However, there are still some problems with the rapidly developing new 5G standard, millimeter wave is too "fragile" compared to Sub6, so it is easy to be blocked by the body, walls, clothes and even phone cases. Nowadays, there are more and more materials and styles of cell phone cases with the needs of the public, metal cases look beautiful, feel and heat dissipation, drop resistance, but easy to signal shielding problems, and with the widespread use of 5G, wireless charging and other new wireless transmission methods, this will become an urgent problem, the application of silicone, plastic, leather and other materials are gradually hot up. So how will these different material cases affect the phone's millimeter wave antenna? How to evaluate and select a suitable material for a 5G millimeter wave cell phone when it needs to be equipped with a cell phone case, which is an inevitable problem for cell phone design manufacturers, how to quickly and easily realize the barrier analysis of the material in the early stage, and how to efficiently and economically conduct sampling and verification in the production line? What means are available to analyze the millimeter wave blocking performance of various materials? The handheld millimeter-wave barrier test solution can complete the test of barrier materials anytime and anywhere, and can be adjusted according to demand, greatly reducing the time required for preliminary material testing, combined with the storage capacity of the device itself, only one test, one export, can directly realize the analysis and comparison of multiple materials, while ensuring the accuracy of the results can greatly save the engineer's time. It can save engineers' time while ensuring accurate results. In addition, it provides a modular millimeter wave barrier measur...