Products/Services for Multiple Tuned VLF Antennas
-
Antennas - (1281 companies)...a microstrip-patch or planar array antenna or multiple dipoles. The cell site can use several panel antennas or bays of panels as required, and adaptive antennas can select the optimal antenna for the application. They are most often used in broadcasting...ApplicationsPattern TypePolarization Type -
Chip Antennas - (111 companies)...commonly manufactured for frequencies between 300 MHz and 2500 MHz, and this accounts for their limited range as well (usually just a few hundred feet or less). Chip antennas are also very precise in their frequency tuning, resulting in a narrow... -
Antenna Design Software - (13 companies)...and the 3D analysis of nano antennas. Antenna software applications are also used to simulate mobile phone antenna performance at multiple points in the cell phone design change. With consumer products, antenna designers must consider the potential health...
-
Antenna Mounts - (25 companies)Antenna mounts are used to hold and support antennas of all sizes and shapes. The antenna collects the electromagnetic signal and sends it to the receiver. There are many types of antennas and mounts including for radio, television, global...
-
Horn Antennas - (73 companies)Horn antennas are used for the transmission and reception of microwave signals. They are usually fed by waveguides. Horn antennas, colloquially referred to as gain horn antennas, are used for the transmission and reception of microwave signals... -
Machining Heads and Multiple Spindle Heads - (107 companies)Machining heads and multiple spindle heads are specialized tool holders that mount on machine tool spindles. Multi-spindle heads carry multiple tools at the same time for performing simultaneous machining operations. Machining heads and multiple...
-
Radomes - (25 companies)...radome structure. To select a radome, first investigate the model designed for an intended purpose. Multiple factors must be considered such as environmental characteristics of the placement zone, frequency of use, antenna transmission properties...
-
Wireless Systems - (265 companies)Wireless systems consist of combined RF components such as transmitters, receivers, transceivers, filters, down / up converters, antennas and antenna positioners. Wireless systems consist of combined RF components such as transmitters, receivers...
-
Towers, Masts, and Poles - (273 companies)Towers, masts and poles elevate, support and/or position personnel and equipment such as antennas, lighting, surveillance cameras or sensors, wind turbines, weather instruments, and power lines. Towers, masts, and poles are used to provide elevation...
-
RF Amplifiers - (609 companies)RF amplifiers are devices that accept a varying input signal and produce an output signal that varies in the same way, but with larger amplitude.
Product News
-
Remcom (USA)
Tune a Tunable Matched Antenna Using XFdtd Aperture and impedance tuners support multiple states using switchable properties and capacitor banks. XFdtd 's schematic editor makes it easy to tune an antenna with fixed-value (e.g., inductors and capacitors) and multi-state components (e.g., tunable capacitors and switches). In this tutorial, we demonstrate the ease of adjusting, or tuning, multiple operating modes so that capacitance values match various frequency bands. Using XF 's schematic editor with tuning slider bars, the correct... (read more)Browse Modeling and Simulation Software Datasheets for Remcom (USA) -
Skyworks Solutions, Inc.
Sky5 Switch for High-performance Aperture Tuning Skyworks is pleased to introduce the SKY59272-707LF a single-pole, single-throw (4xSPST) switch designed for antenna tuning applications that require ultra-low OFF capacitance and low ON resistance. This device offers excellent performance and ultra-high linearity for smartphone applications operating in the 5G, LTE or GSM band space, where high performance aperture tuning is required. In addition, an integrated MIPI logic controller and 4xSPST topology provides the flexibility to tune multiple... (read more)Browse RF Switches Datasheets for Skyworks Solutions, Inc. -
Remcom (USA)
Tuning Slider Bars for Matching Network Design January 24, 2023 - State College, PA. Remcom announces matching network tuning in the latest release of XFdtd (R) 3D Electromagnetic Simulation Software, enabling users to easily adjust component values to meet design goals and understand the behavior of a circuit. The addition of an analysis workbench in XFdtd 's schematic editor further expands the software 's toolset for comprehensive matching network design. The workbench 's intuitive sliders enable rapid manipulation of inductor... (read more)Browse Modeling and Simulation Software Datasheets for Remcom (USA) -
Remcom (USA)
Dynamic Matched Antenna Using XFdtd Modern devices use sensors to recognize an antenna in free space versus one next to a head. Based on the antenna loading condition, the device is able to dynamically adjust component values for optimal performance. XFdtd streamlines dynamic antenna matching by simulating multiple states and operating modes in one easy step. In this video tutorial, an antenna's intrinsic impedance is simulated for two conditions--in free space and against a head. A three-port switch with two possible states... (read more)Browse Modeling and Simulation Software Datasheets for Remcom (USA) -
ECS Inc. International
IoT Tuning Fork ECS-1210 The ECX-1210 is our smallest 32.768 kHz SMD tuning fork crystal, measuring 1.2 x 1.0 mm. The SMD tuning fork offers a tolerance of +-20 ppm available over the standard industrial temperature range of -40 C ~ +85 C. The ECX-1210 is ideal for wearable, drug delivery devices and hearing aids. Features: 1.2 x 1.0 mm Footprint. Extended Temperature Range. RoHS 2 and REACH Compliant. MSL 1. Lead Finish Au (read more)Browse Crystals Datasheets for ECS Inc. International -
ECS Inc. International
Wireless and Mobile Tuning Fork Crystal The ECX-1210B is a miniature 1.2 x 1.0 mm 32.768 kHz tuning fork crystal featuring a frequency tolerance of +-20 ppm and an ESR of 80k O, providing low energy consumption. Additional features include an extended operating temperature of -40 C ~ +105 C and load capacitance options of 6pF, 7pF, 9pF and 12pF. This is the smallest form factor available today and is ideal for precision timing in mobile, wireless, wearables, hearing aids and drug delivery devices, and is recommended for the STM32 via... (read more)Browse Crystals Datasheets for ECS Inc. International -
ECS Inc. International
Tuning Fork Crystal For Automotive Applications The ECX-34Q, AEC-Q200 qualified miniature 3.2 x 1.5 x 0.9 mm surface mount tuning fork (32.768 kHz) crystal. It features a standard frequency tolerance of +-20 ppm at +25 C and a +-10 ppm tolerance option. Available load capacitance of 12.5pF, 9pF, 7pF or 6pF with an operating temperature of -40 C ~ +85 C or -40 C ~ +125 C. Download Data Sheet Here. Features: 3.2 x 1.5 mm footprint. AEC-Q200 Qualified. TS16949 certified production. PPAP supported. -40 C ~ +125 C temperature range. RoHS-2... (read more)Browse Crystals Datasheets for ECS Inc. International -
Infineon Technologies AG
Overcome antenna design challenges for improved antenna efficiency. In smart connected devices, an antenna should be able to perform well in several frequency bands. Hence, there is a growing need to tune antennas according to the required frequency band of operation. This can be done by applying antenna tuning which improves overall antenna radiation efficiency. Antenna tuning can be performed in two ways. Aperture tuning improves antenna efficiency by shifting the natural resonance of an antenna to the required frequency band... (read more)Browse Antennas Datasheets for Infineon Technologies AG -
TE Connectivity
Versatility with TE NFC Antennas NFC Embedded Antennas. TE Connectivity 's (TE 's) NFC antenna offer an extremely compact and versatile family of antennas for two-way read/write operations at 13.56 MHz. The form factors available mean that the NFC antenna family is suitable for multiple applications at 13.56 MHz operations. KEY PRODUCT MESSAGING. Focused. Higher reading distance than competition. Multiple antenna formats available. Two-way read/write operations at 13.56 MHz. Flexible. Fully 'Pick & Place ', SMT or peel... (read more)Browse Antennas Datasheets for TE Connectivity -
Endress + Hauser – Sensors & Components
Radar sensors for multiple applications The USR30 radar sensor is the smallest version of our new radar sensors for customer-specific applications. It offers the complete functionality of the radar module UTR30, however, without a housing and without a specified, ready-made electrical connection. The output signal is digital (UART) and could be adapted for the use in the target application. The USR30 is the core piece of our brand-new radar module UTR30. The sensor unites reliability and high-precision level measurement, delivering... (read more)Browse Level Sensors Datasheets for Endress + Hauser – Sensors & Components
More Information
Indicates content that may require registration and/or purchase.
-
VLF transmitting antennas multiple-tuning vs single-tuning
A comparison between performance of two multiple tuned VLF antennas with two single tuned VLF antennas.
-
Multiple-tuned VLF antennas
This paper compares different possibilities of feeding two multiple tuned VLF antennas with regard to antenna performance and tuning.
-
Handbook of Antenna Design, Vol. 2
15.3.7 Multiple - tuned VLF antennas 597 .
-
SAQ in Grimeton, the only remaining pre-electronic transmitter for transatlantic work, now on the Unesco world heritage list
From late 1924, the Alexanderson alternator and his multiple tuned antenna system at Grimeton, Sweden, were used for VLF communication from SAO to "Radio Central", Rocky Point, Long Island, USA.
-
Radiation characteristics of an electrically small MF broadcast antenna-by simulation
Multiple tuning has been employed at LF and VLF , where practical antennas are electrically small,' to increase the resistive component of the antenna s impedance, and so increase the bandwidth of the antenna system (61.
-
Antenna Engineering Handbook, Fourth Edition > Low- and Medium-Frequency Antennas
… spiral top-loading structure also has been proposed to achieve relatively small size, low feed voltage, and even to reduce the tuning circuit inductor size.4 Increased capacitance for VLF umbrella radial-wire top-loading antennas using multiple -wire rib construction also …
-
A multiple tuned multiple fed broadband MF antenna
Multiple Tuned and Multiple Fed (MTMF) antenna systems have been used since the beginning ofradio, forimproving the radiation efficiency and the bandwidth of early VLF antennas [l], c.f. Figure 1, where the most adverse conditions of low radiation resistance and high …
-
Author index
, D. L.; Code division multiple access (EASCON 74 Abstr.); T-AES 74 Nov 907 (2E04) Kretschmer, Frank F.; MTI weightings (Corresp … … Jan 153-156 (2F02) Kreutel, R. W., and W. J. English; Design and measurements of satellite antenna systems for frequency reuse … … first domestic communications satellite (EASCON 74 Abstr.); T-AES 74 Nov 911 (2E08) Lee, F. C. Y., and T. G. Wilson; Nonlinear analysis of a family of LC tuned inverters (PESC 74 Abstr … … Goran P. R. Netzler; VLF loop antennas for pulse …
-
TACAMO II communications system
The system receives multiple frequency low-level signals, while simultaneously transmitting at high power in a stressed … The VLF power amplifier provides amplification of the signal to 200 kW power and automatic tuning of the signal to the dual trailing-wire antenna system.
-
The Alexanderson alternator of Grimeton Radio, Sweden
The design of the 200 kW alternators for VLF were ready in 1918. Including the very impressive multiple tuned antenna , they were manufactured by General Electric and sold by the Radio Corporation of America around the world.
