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Anaren
Anaren, Inc. was an American manufacturer of high-frequency radio and microwave electronics. Founded in 1967 and headquartered in Syracuse, New York, it was acquired in 2018 by TTM Technologies. Anaren produced RF microelectronics, components, and assemblies for customers in the aerospace and defense, networking, and communications industries, including the wireless and satellite communications sectors. History Anaren Microwave, Inc. was founded in 1967 by Hugh A. Hair and Carl W. Gerst Jr. in Syracuse, New York. Both were RF engineers who had worked together at General Electric and at SRC Inc. before establishing Anaren to focus on leveraging the stripline manufacturing technique. The company began trading on the Nasdaq in 1972, and its first customers were aerospace and defense firms including Hughes Aircraft, Litton Industries (now part of Northrop Grumman), and Raytheon. Early contracts included: a microwave landing system for jetliners funded by the U.S. Department of Def ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
TTM Technologies
TTM Technologies, Inc. is an American printed circuit board (PCB) manufacturer headquartered in Santa Ana, California. Founded in 1998, the company is one of the top five PCB manufacturers in the world and the largest in North America, and the largest supplier of PCBs to the U.S. military. TTM serves customers in industries including aerospace and defense, medical, industrial, automotive, computing, and networking. History TTM Technologies, Inc. was founded in 1998 by Kent Alder in Redmond, Washington, via an acquisition of Pacific Circuits, Inc., and moved to Santa Ana, California, in 1999, after acquiring Power Circuits, Inc. Alder was previously the president of Lundahl Astro Circuits, Inc. in Logan, Utah, from 1987, and president and CEO of its successor ElectroStar, Inc. from 1994. After ElectroStar was acquired by the Tyco Printed Circuit Group in 1996, Alder served as that company's vice president before departing to found TTM. TTM's original business was manufacturing pr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
RF Module
An RF module (short for radio-frequency module) is a (usually) small electronic device used to transmit and/or receive radio signals between two devices. In an embedded system it is often desirable to communicate with another device wirelessly. This wireless communication may be accomplished through optical communication or through radio-frequency (RF) communication. For many applications, the medium of choice is RF since it does not require line of sight. RF communications incorporate a transmitter and a receiver. They are of various types and ranges. Some can transmit up to 500 feet. RF modules are typically fabricated using RF CMOS technology. RF modules are widely used in electronic design owing to the difficulty of designing radio circuitry. Good electronic radio design is notoriously complex because of the sensitivity of radio circuits and the accuracy of components and layouts required to achieve operation on a specific frequency. In addition, reliable RF communication ci ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
SRC Inc
SRC Inc., formerly Syracuse Research Corporation, is an independent, not-for-profit research and development company in the defense, environment, and intelligence industries. SRC is chartered by the State of New York, with headquarters in North Syracuse, New York. The company develops advanced radar, electronic warfare, communications systems; and conducts intelligence consulting and engineering, environmental chemistry, toxicology, and risk assessment. History Syracuse Research Corporation was founded in 1957, as a not-for-profit arm of Syracuse University. The organization was formed to work on projects relative to America's national security. SRC provided Syracuse University's faculty with a vehicle to obtain grants and contracts, which could be used to pursue their research ideas. The company became an independent organization in the early 1970s. In 2008, SRC officially changed its name from Syracuse Research Corporation to SRC, Inc. SRC's government research monies ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Direction Finding
Direction finding (DF), radio direction finding (RDF), or radiogoniometry is the use of radio waves to determine the direction to a radio source. The source may be a cooperating radio transmitter or may be an inadvertent source, a naturally-occurring radio source, or an illicit or enemy system. Radio direction finding differs from radar in that only the direction is determined by any one receiver; a radar system usually also gives a distance to the object of interest, as well as direction. By triangulation, the location of a radio source can be determined by measuring its direction from two or more locations. Radio direction finding is used in radio navigation for ships and aircraft, to locate emergency transmitters for search and rescue, for tracking wildlife, and to locate illegal or interfering transmitters. During the Second World War, radio direction finding was used by both sides to locate and direct aircraft, surface ships, and submarines. RDF systems can be used w ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Suzhou
Suzhou is a major prefecture-level city in southern Jiangsu province, China. As part of the Yangtze Delta megalopolis, it is a major economic center and focal point of trade and commerce. Founded in 514 BC, Suzhou rapidly grew in size by the Eastern Han dynasty, mostly due to emigration from Northern and southern China, northern China. From the 10th century onwards, it has been an important economic, cultural, and commercial center, as well as the largest non-capital city in the world, until it was overtaken by Shanghai. Since Chinese economic reform, economic reforms began in 1978, Suzhou attained GDP growth rates of about 14% in 35 years. In 2023, Suzhou had 5 million registered residents. Suzhou is listed as the 48th List of cities by scientific output, cities by scientific output according to the Nature Index 2022. The city is home to universities, including Soochow University (Suzhou), Soochow University, Suzhou University of Science and Technology, Xi'an Jiaotong–Liverp ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Co-fired Ceramic
Co-fired ceramic devices are monolithic, ceramic microelectronic devices where the entire ceramic support structure and any conductive, resistive, and dielectric materials are fired in a kiln at the same time. Typical devices include capacitors, inductors, resistors, transformers, and hybrid circuits. The technology is also used for robust assembly and packaging of electronic components multi-layer packaging in the electronics industry, such as military electronics, MEMS, microprocessor and RF applications. Co-fired ceramic devices are fabricated using a multilayer approach. The starting material is composite green tapes, consisting of ceramic particles mixed with polymer binders. The tapes are flexible and can be machined, for example, using cutting, milling, punching and embossing. Metal structures can be added to the layers, commonly using filling and screen printing. Individual tapes are then bonded together in a lamination procedure before the devices are fired in a kiln, wh ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Salem, New Hampshire
Salem is a town in Rockingham County, New Hampshire, United States. The population was 30,089 at the 2020 census and an estimated 30,647 in 2022. Salem is a northern suburb of Boston located on Interstate 93. As the first town along I-93 northbound in New Hampshire, which lacks any state sales tax, Salem has grown into a regional commercial hub for the northern section of Greater Boston, anchored by the Mall at Rockingham Park and Tuscan Village. Other major sites include Canobie Lake Park, a large amusement park; and America's Stonehenge, a stone structure of disputed origins. It is the former home of Rockingham Park, a horse racetrack. The Sununu political family hails from Salem, including former New Hampshire governor and White House Chief of Staff John H. Sununu, and his sons John E. Sununu, a former U.S. senator, and Chris Sununu, former New Hampshire governor. Salem was named on the ''Money'' website's "Best Places to Live 2020" list. History The area was fi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
North Andover, Massachusetts
North Andover is a town in Essex County, Massachusetts, United States. At the 2020 census, the population was 30,915. History Native Americans inhabited what is now northeastern Massachusetts for thousands of years prior to European colonization of the Americas. At the time of European arrival, Massachusett and Naumkeag people inhabited the area south of the Merrimack River and Pennacooks inhabited the area to the north. The Massachusett referred to the area that would later become North Andover as ''Cochichawick''. The lands south of the Merrimack River around Lake Cochichewick and the Shawsheen River were set aside by the Massachusetts General Court in 1634 for the purpose of creating an inland plantation. The Cochichewick Plantation, as it was called, was purchased on May 6, 1646, when Reverend John Woodbridge, who had settled the land for the English, paid Massachusett sachem Cutshamekin six pounds and a coat for the lands. The plantation was then incorporated as ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Long Island
Long Island is a densely populated continental island in southeastern New York (state), New York state, extending into the Atlantic Ocean. It constitutes a significant share of the New York metropolitan area in both population and land area. The island extends from New York Harbor eastward into the ocean with a maximum north–south width of . With a land area of , it is the List of islands of the United States by area, largest island in the contiguous United States. Long Island is divided among four List of counties in New York, counties, with Brooklyn, Kings (Brooklyn), Queens, and Nassau County, New York, Nassau counties occupying its western third and Suffolk County, New York, Suffolk County its eastern two-thirds. It is an ongoing topic of debate whether or not Brooklyn and Queens are considered part of Long Island. Geographically, both Kings and Queens county are located on the Island, but some argue they are culturally separate from Long Island. Long Island may ref ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Iridium Satellite Constellation
The Iridium satellite constellation provides L band voice and data information Pass (spaceflight), coverage to satellite phones, satellite messenger communication devices and integrated transceivers. Iridium Communications owns and operates the Satellite constellation, constellation, additionally selling equipment and access to its services. It was conceived by Bary Bertiger, Raymond J. Leopold and Ken Peterson in late 1987 (in 1988 protected by patents Motorola filed in their names) and then developed by Motorola on a fixed-price contract from July 29, 1993, to November 1, 1998, when the system became operational and commercially available. The constellation consists of 66 active satellites in orbit, required for global coverage, and additional spare satellites to serve in case of failure. Satellites are placed in low Earth orbit at a height of approximately and Orbital inclination, inclination of 86.4°. The nearly polar orbit and communication between satellites via Ka band I ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Directional Coupler
Power dividers (also power splitters and, when used in reverse, power combiners) and directional couplers are passive devices used mostly in the field of radio technology. They couple a defined amount of the electromagnetic power in a transmission line to a port enabling the signal to be used in another circuit. An essential feature of directional couplers is that they only couple power flowing in one direction. Power entering the output port is coupled to the isolated port but not to the coupled port. A directional coupler designed to split power equally between two ports is called a hybrid coupler. Directional couplers are most frequently constructed from two coupled transmission lines set close enough together such that energy passing through one is coupled to the other. This technique is favoured at the microwave frequencies where transmission line designs are commonly used to implement many circuit elements. However, lumped component devices are also possible at lower ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
