Notice: Function _load_textdomain_just_in_time was called incorrectly. Translation loading for the limit-login-attempts-reloaded
domain was triggered too early. This is usually an indicator for some code in the plugin or theme running too early. Translations should be loaded at the init
action or later. Please see Debugging in WordPress for more information. (This message was added in version 6.7.0.) in /mnt/web214/a1/45/52254245/htdocs/akoriot/WordPress_02/wp-includes/functions.php on line 6114
Notice: Function _load_textdomain_just_in_time was called incorrectly. Translation loading for the wordpress-seo
domain was triggered too early. This is usually an indicator for some code in the plugin or theme running too early. Translations should be loaded at the init
action or later. Please see Debugging in WordPress for more information. (This message was added in version 6.7.0.) in /mnt/web214/a1/45/52254245/htdocs/akoriot/WordPress_02/wp-includes/functions.php on line 6114
Warning: Cannot modify header information - headers already sent by (output started at /mnt/web214/a1/45/52254245/htdocs/akoriot/WordPress_02/wp-includes/functions.php:6114) in /mnt/web214/a1/45/52254245/htdocs/akoriot/WordPress_02/wp-includes/rest-api/class-wp-rest-server.php on line 1893
Warning: Cannot modify header information - headers already sent by (output started at /mnt/web214/a1/45/52254245/htdocs/akoriot/WordPress_02/wp-includes/functions.php:6114) in /mnt/web214/a1/45/52254245/htdocs/akoriot/WordPress_02/wp-includes/rest-api/class-wp-rest-server.php on line 1893
Warning: Cannot modify header information - headers already sent by (output started at /mnt/web214/a1/45/52254245/htdocs/akoriot/WordPress_02/wp-includes/functions.php:6114) in /mnt/web214/a1/45/52254245/htdocs/akoriot/WordPress_02/wp-includes/rest-api/class-wp-rest-server.php on line 1893
Warning: Cannot modify header information - headers already sent by (output started at /mnt/web214/a1/45/52254245/htdocs/akoriot/WordPress_02/wp-includes/functions.php:6114) in /mnt/web214/a1/45/52254245/htdocs/akoriot/WordPress_02/wp-includes/rest-api/class-wp-rest-server.php on line 1893
Warning: Cannot modify header information - headers already sent by (output started at /mnt/web214/a1/45/52254245/htdocs/akoriot/WordPress_02/wp-includes/functions.php:6114) in /mnt/web214/a1/45/52254245/htdocs/akoriot/WordPress_02/wp-includes/rest-api/class-wp-rest-server.php on line 1893
Warning: Cannot modify header information - headers already sent by (output started at /mnt/web214/a1/45/52254245/htdocs/akoriot/WordPress_02/wp-includes/functions.php:6114) in /mnt/web214/a1/45/52254245/htdocs/akoriot/WordPress_02/wp-includes/rest-api/class-wp-rest-server.php on line 1893
Warning: Cannot modify header information - headers already sent by (output started at /mnt/web214/a1/45/52254245/htdocs/akoriot/WordPress_02/wp-includes/functions.php:6114) in /mnt/web214/a1/45/52254245/htdocs/akoriot/WordPress_02/wp-includes/rest-api/class-wp-rest-server.php on line 1893
Warning: Cannot modify header information - headers already sent by (output started at /mnt/web214/a1/45/52254245/htdocs/akoriot/WordPress_02/wp-includes/functions.php:6114) in /mnt/web214/a1/45/52254245/htdocs/akoriot/WordPress_02/wp-includes/rest-api/class-wp-rest-server.php on line 1893
{"id":3456,"date":"2020-12-09T12:51:48","date_gmt":"2020-12-09T12:51:48","guid":{"rendered":"https:\/\/www.akoriot.com\/antenna-services\/ce-red-fcc-pretest-2\/"},"modified":"2022-01-20T15:34:04","modified_gmt":"2022-01-20T15:34:04","slug":"antenna-selection","status":"publish","type":"page","link":"https:\/\/www.akoriot.com\/antenna-services\/antenna-selection\/","title":{"rendered":"07 Antenna Selection"},"content":{"rendered":"\n[et_pb_section fb_built=”1″ _builder_version=”4.7.4″ _module_preset=”default” background_color=”#e1e1f3″ use_background_color_gradient=”on” background_color_gradient_start=”#e1e1f3″ background_color_gradient_end=”rgba(86,114,255,0.36)” background_color_gradient_type=”radial” background_color_gradient_direction_radial=”left” background_color_gradient_start_position=”75%” background_color_gradient_overlays_image=”on” background_image=”https:\/\/www.akoriot.com\/wp-content\/uploads\/2020\/12\/therapist-10.png” parallax=”on” bottom_divider_style=”curve” bottom_divider_color=”#7483d4″ saved_tabs=”all” collapsed=”off”][et_pb_row _builder_version=”4.7.4″ _module_preset=”default”][et_pb_column type=”4_4″ _builder_version=”4.7.4″ _module_preset=”default”][et_pb_blurb title=”Antenna Selection” alt=”Picture of a workshop on antenna design” content_max_width=”833px” _builder_version=”4.7.4″ _module_preset=”default” header_level=”h1″ header_font=”Montserrat|300|||||||” header_font_size=”50px” body_text_align=”center” body_font_size=”26px” body_line_height=”1.4em” background_color=”rgba(0,0,0,0)” background_enable_image=”off” text_orientation=”center” custom_margin=”-8px||||false|false” custom_padding=”12px||||false|false” hover_enabled=”0″ border_radii=”on|6px|6px|6px|6px” sticky_enabled=”0″]
Making the right choice for success<\/p>\n[\/et_pb_blurb][\/et_pb_column][\/et_pb_row][\/et_pb_section][et_pb_section fb_built=”1″ _builder_version=”4.7.4″ _module_preset=”default” background_color=”#7483d4″][et_pb_row _builder_version=”4.7.4″ _module_preset=”default” custom_padding=”0px|||0px|false|false”][et_pb_column type=”4_4″ _builder_version=”4.7.4″ _module_preset=”default”][et_pb_blurb alt=”A demonstration of static electricity” image_max_width=”67%” content_max_width=”1100px” _builder_version=”4.7.4″ _module_preset=”default” header_level=”h2″ background_color=”#ffffff” custom_padding=”7px|15px||15px|false|true” hover_enabled=”0″ border_radii=”on|6px|6px|6px|6px” border_width_all=”2px” border_color_all=”#2e3192″ border_radii_image=”on|6px|6px|6px|6px” border_width_all_image=”2px” border_color_all_image=”#2e3192″ box_shadow_style_image=”preset4″ box_shadow_horizontal_image=”11px” box_shadow_blur_image=”11px” box_shadow_color_image=”#3c3e99″ title=”Selection of antennas for a tracking device” sticky_enabled=”0″]
Antenna selection should be made at the beginning of development for any wireless IoT device because its final cost and performance will define the success of your project.<\/p>\n
Everything inside a distance of pi x 2 x lambda to antenna component becomes part of the system and affects its performance. This area is called the \u201cnear field \u201cof the antenna, this will include the PCB, larger components such as the battery or display, the FR4 board and the housing.<\/p>\n
Below we will illustrate a few known and also a few unknown arrangements for antennas in a tracking device transmitting over NB-IoT, LTE-M, GNSS and Bluetooth. The ten examples shown are only symbolic, there are many more possibilities and these could fill an entire “IoT Antenna Cookbook”.<\/p>\n
10 illustrations of antenna layout on a PCB<\/p><\/div>\n
Figure 1 and 2 show chip antennas for NB-IoT\/LTE-M, Bluetooth and GNSS. In figure 3, the chip antenna for GNSS \u201cc\u201d has been exchanged for a patch antenna. In figure 4, the chip antenna for NB-IoT\/LTE-M (g) has been exchanged for a flex PCB antenna. This is not unusual and saves installation space on the PCB. The downside is the extra cost of the antenna, the coaxial socket on the PCB and the cost of manual labour to mount the antenna in the enclosure.<\/p>\n
PCB antennas integrated into the main PCB with chip antennas
In Figure 5, the PCB antennas for NB-IoT\/LTE-M have been integrated into the main PCB. This has several advantages: the cost of procurement is 0 Euros, the delivery time is 0 days and there is no end of life. In addition, the antenna can be optimally adapted to the environment by adjusting the antenna structure. Chip antennas were chosen for Bluetooth and GNSS.<\/p>\n
akorIoT SensPRO multi-antenna PCB<\/p><\/div>\n
Here is a practical example of a multi-antenna test PCB, the akorIoT SensPRO, The SensPRO has a PCB antenna for NB-IoT\/LTE-M and a chip antenna for GNSS, in addition there is a PCB antenna for Bluetooth included on a separate Bluetooth module<\/p>\n
<\/p>\n
The akorIoT team have many years of experience in design and testing antenna performance and understanding the effect of all system components on antenna performance. <\/p>\n